* Update of MLSL git tag

* Use last MLSL commit

* Use last valid MLSL commit

Update TBB build script for Windows.

Fix typo.

Fix incorrect omp lib name on Windows.

Fix incorrect tbb.dll path on Windows.

Make LIBRARY and ARCHIVE output directory consistent.

Function missing on Windows.

Update test::util::all_close() to fix compilation issue on Windows

Export CPU_Executable on Windows.

Change nbench path for unit-test on Windows.

Change copy to copy_if_different.

Install CPU backend on Windows.

Disable tools test on Windows.

Disable two failing unit test on Windows CPU.

Fix incorrect CPU backend install path on Windows.

* [CPUCodegen] Remove unnecessary forward declaration.

* [CPUCodegen] Introduce CPURuntimeContextCG for standalone codegen generation.

This patch introduces CPURuntimeContextCG. This class is aimed at
removing the dependency between nGraph and the generated code in
codegen mode. It will be used to hold the runtime context in
codegen mode and it will be emitted in the generated code. For now,
CPURuntimeContextCG only contains TBB's graph and global context.
Follow-up patches will migrate more members in CPURuntimeContext to
CPURuntimeContextCG for codegen mode.

Testing results:
  - Before: NGRAPH_CODEGEN=1 test/unit-test
    [----------] Global test environment tear-down
    [==========] 2503 tests from 54 test cases ran. (290406 ms total)
    [  PASSED  ] 2490 tests.

  - After: NGRAPH_CODEGEN=1 test/unit-test
    [----------] Global test environment tear-down
    [==========] 2503 tests from 54 test cases ran. (412616 ms total)
    [  PASSED  ] 2490 tests.

* [CPUCodegen] Refactor function parameters string

* Fix bug in CPU_CallFrame destructor impacting DEX

* [Standalone] Replace assert with NGRAPH_ASSERT

* - Added reorder support for rnn weights_layer/iter

* i) fixed compilation issues ii) working but still observing precision error

* i) fixed failing rnn unit test for DEX ii) refactored workspace in RNN mkldnn emitter

* i) added support for src reorder to TNC from NTC

* reorder support for rnn output fron NTC to TNC

* - added support for rnn weight reorder ldgoi -> ldigo
- code refactor for lstm/rnn kernel in mkldnn emitter

* - refactor rnn mkldnnn kernel, change variable names

* fix RNN codegen kernel

* disbale layer rnn fusion pass, to test CI

* method to validate recurrent rnn inputs

* add correlated macthes for Recurrent RNN PM

* - simplify reorder logic for rnn_weights
- fix graph pattern for fusing rnn cell across time steps

* do weights reorders in rnn timesteps fusion

* refactored LSTM graph pass

* - Bug fix for finding the lstm inputs determenstically
- Refactored LSTM graph pass to single pass
- made changes to LSTM RNN time step fusion graph pass

* - use replace_node instead of replace_output in Lstm_step_wise fusion graph pass

* fix compilation error

* Fix GNMT rnn fusion

* check if the node is in use before replacing in RNN graph passes

*  i) fix style ii) fix topo sort issue in RNN graph pass

* style fix

* fix bug in simplify_concat pass

* replaces Lstm1 -> {GOE1, GOE2} -> {Slice1, Slice2} -> Concat -> Lstm2 with Lstm1 -> Lstm2

* cse for convert layout

* addressed PR comments

* - optimization pass to remove  Lstm1 -> {GOE1, GOE2} -> {Slice1, Slice2} -> Lstm2
- conditional fusing of LSTM cells only for the decoder

* made changes to multi layer RNN fusion callback

* fix asserts in RNN op

* - added support to fuse layers when slc=dlc for RNN cells
- bug fix on the sanity checks for RNN Op

* - support RNN layer fusion till slc = dlc
- bug fixes in multi layer rnn fusion call back

* capture reshape in the RNN weights

* Addressed PR comments

* - added comments in multi layer PM call back
- fuse only if slc == DLC across layers

* restore deleted 3_lstm_cell_forward.json file

* fix typo

* fix failing unit tets

* When processing in place slice, do not change the offset of the slice node if the argument pointer comes from function input.

* Address PR feedback: process in place slice after propagating in place input.

* Set INTERMEDIATE role before propagating in place input.

* Do not add temporaries to the variable name map before propagating in place input in codegen.

* Fix a bug in codegen.

* Fix a bug in codegen slice.

* reenable disabled rnn unit test

* fix compiler error

* - bug fix in the slicing logic for the layer fused rnn cell
- fix failing rnn unit test

* - Addressed PR comments
- removed redundant checks from the rnn graph pass
- simplified rnn call back replace node logic

* - added new multilayer rnn *.json file
- fix test case

* [PRIVATE BRANCH] Style fixes (#2080)

* Style fixes

* change order of lstm gates

* WIP bi rnn

* [PRIVATE BRANCH] Jbobba/rnn fusion review (#2113)

* Style fixes for single-layer RNN fusion

* Style fixes to multi-layer RNN

* added callback routine for bi-directional rnn

* fix rnn op ctor, rnn mkldnn emitter to accomodate bi directional rnn

* style fix

* added helper function for rnn's to query direction and cell_type

* fix clang error

* - unit test case for bi rnn fusion
- style fix

* - updated bi-rnn graph pass to handle reverse and reverse_seq ops in the predicate
- added bi-rnn inter v/s cpu unit test case
- add support to in mkldnn_utils to create_md with tnc/ntc format

* - added enum type to deduce rnn_type

* Addressed PR comments
    - handle reshapes from {t, n, c} to {n, t, c} in the graph pass

* fix style

* fix clang error

* fix style

* i) move enum specific to rnn to seperate header

* Cleaner API doc reference for compile call

* Add a useful table for nGraph namespaces

* Remove layout namespace

* Show exploding kernel problem on illustration like IEEE preso

* WIP branch for new documentation restructuring that is a huge pain

* Fix the doc reorg mess

* Fix underline

* List of passes disclaimer note

* Update disclaimers on README

* More cleanup of doc reorg

* Update core docs

* Update overview on core

* Add PR feedback

* Get rid of all the gazillion of doc build errors from rearranging stuff

* Add section on tutorials

* Update branch

* Cleanup intro

* Add better detail to overview

* Function for retrieving number of node outputs.

* Handle optional trimmed outputs.

* Fix compilation err on clang.

* Fix error for number of outputs.

- Iterate over the minimum of number of outputs we return and the number
  of outputs of respective node in the graph. Some outputs may be
  optional and trimmed, as well as for some op implementations we may
  return not all outputs (ie. Dropout - where we do not return additional
  optional output).

* Update graph.cpp

* Add dropout ONNX op.

* Revert to iterate over node outputs in graph.

* Use more apropriate word in comment.

* Add QuantizedConcat

* Remove unused variables and add check for size of mins and maxes vector

* Resolve conflicts

* Merged with master and addressed some PR feedback

* Avoid float comparison

* make min/max vector, add dequant/quanti

* fix dequant/quant scales

* fix CI build issue

* use calls for new backend API in unit tests

* fix compile error

* fix compile error

* IntelGPU backend: Comvolution support for double and code minor clean up

* PR2479. custom kernel selection fix

* [ONNX] Overriding custom ops

* Add UT

* Style Check

* Review & style fix

Changing clDNN to latest commit.

* IntelGPU backend: Quantize operations

* Update intelgpu_op_custom_kernels.cpp

* User friendly assert message

* User friendly assert message

* Update UT

* Utility function for reading binary file content.

* Style apply.

* Review. Add sanity check on file size.

* Style-apply.:

* Auto detect OSX_SYSROOT for macos >= 10.14

* Fix potential regex issue.

* Use git shallow clone if CMake >= 3.6. Remove BUILD_BYPRODUCTS.

* Fix ONNX, protobuf integration.

* [ONNX] Enable OneHot operation

* Add UT

* Style check

* Change converts

* Change assert messages

* Update comments

* Update onehot.cpp

* rename tensor view to tensor

* one more

* revert change

* handle channelwise scale mask

* add Quantize op to cpu_layout

* enable Quantize to use input layout for output

* add comments for channelwise mask

* add Dequantize to cpu_layout

* resolve style-check

* fix unsupported layout issue

* fix s8s8 reorder issue