* Axes input was added to LRN

* Unit tests for axes shape check were added

* LRN node deserialization was updated

* Fixed EOF and clang style applied

* Changed Constant to Parameter type in unit tests

* Expanded LRN reference ingterface

* Fixed LRN assert description

* Fixed passing arguments

* Reference implementation for one axis

* Implementation for channel

* Implementation for hw

* working on recurence version

* Implemented recurence version for hw

* Reference implementation code refactor

* Fixed ref LRN implementation and added tests

* Added 6D unit test

* Clang styles applied

* Code review remarks introduced

* Support for dynamic shape of axes input

* Clang styles applied

* Code review remarks introduced

* Added checking if axes values are in correct range

* Clang styles applied

* Removed redundant include

* Code review remarks introduced

* Renamed auto broadcast name in constructors

* Fixed argument doc for Or op

* Changed names of fields to serialization

* Changed name of auto_broadcast in XOR op

* Clang styles applied

We'll add contrib/mlir/tools directory in subsequent PRs for ngrpah-opt
and other tools.

* Fix crash when NGRAPH_ENABLE_{VISUALIZE,SERIALIZE}_TRACING=1

* Initialization for kw (#3413)

* Fix sum reference to handle corner cases with +-inf (#3412)

* Fix sum reference to handle corner cases with +-inf

* Review comments, and try to make Windows happy

* Update GPU unit_test.manifest

* More template grindery, to make macOS happy

* Update jenkins-trigger.groovy (#3428)

* Cyphers/exec can create tensors (#3445)

* Add method to check if an Executable can create tensors

* Add a Backend check to see if Executable can create tensors

* Update per review comment

* style

* Possible fix so that backend does not keep holding on to the dummy ng_exec

* Separate dynamic loading from static linking (#3456)

* Separate dynamic loading from static linking

* Missed find_my_pathname

* Update jenkins-trigger.groovy (#3518)

* add rank id to trace file name (#3525)

* no_fork : Remove allication for empty vector

* style

* no_fork: Performance issue vector of string to T

* style

* WIP

* Fix incorrect CK output adjustment

* Bug fix and enroce sanity check

* Change cycle search depth, and fix sanity check

* cpu_fusion.validate_fuse_gru_inputs passes.

* Fix as_single_output to be able to always create a GOE

* minor fix. style-apply

* Clean up debug msgs

* Switch to backward cycle check

* Enable failing test

* PR fixes

* Address feedback: Add fwd cycle checks. Make cycle checking depth configurable

* [MLIR] Add config files for LIT

LIT is the LLVM testing tool that is used in LLVM and MLIR. It's
necessary to enable all the MLIR testing in nGraph. This will provide
a complementary finer grain level of testing than the one currently done
with gtest. LIT will allow testing each MLIR-based nGraph transformation
without having to run the whole nGraph pipeline. For example, we will be
able to write an nGraph dialect input, invoke an single MLIR transformation
on it and check that the output is the expected.

This PR adds the basic configuration files to enable LIT tool
in nGraph for MLIR Compiler. `affine_lowering/lit_test.mlir` is a
dummy test to exercise the new testing feature. Lit testing will be
enabled in CMAKE in a subsequent PR.

* Address feedback

* [Py] Added operators Shuffle Channels, Squared Difference and Squeeze to Python API.

* [Py] Changed docstring.

* [Py] Changed docstring.

* [Py] Changed docstring.

* Initialize CPU transformer the same way for static and non-static linking.

* Initialize earlier

* Update https links

* Update https links to new ngraph.ai site

* Fix links

* Fix links

* Fix more HTML links

* Reverting CODEOWNER change while we brainstorm on other solutions. As requested by adstraw

Set up visibility support for all the library backends.

* New clang-format rules for src/ngraph/op/util

* Restore root .clang-format

* Remove redundant .clang-formats

* Revert "Remove redundant .clang-formats"

This reverts commit e158df1e507570b55348ce326fd7e8b4ae819f36.

* Remove redundant .clang-formats

* New clang-format rules for src/ngraph/op/fused

* New clang-format rules for src/ngraph/op/experimental

* New clang-format rules for src/ngraph/op/.

* New clang-format rules for src/ngraph/frontend

* Remove now-redundant .clang-format

This PR is a stepping stone towards unifying nGraph MLIRCompiler printing
flags with those used in MLIR. It enables flag -print-ir-after-all
implemented in MLIR pass manager and adds flag -print-ngraph-ir-after-all
to MLIRCompiler so that we can use it to dump IR for those transformations
that we do directly in MLIRCompiler without using a proper pass. Eventually,
everything should be working as a pass and the nGraph variant of the
flag shouldn't be needed. NGRAPH_MLIR_DUMP_ALL macro is no longer
needed.

* Print CK info in visualizer

* style-apply

* Fix parameters printing

*  Fixes

* typo

* [MLIR] Bump MLIR repo 8/20/2019

MLIR_
commit 0cdb20a6add19bc96c20dad28589a1e54e4d8469
Author: Lei Zhang <antiagainst@google.com>
Date:   Tue Aug 20 13:33:41 2019 -0700

    Add spv.specConstant and spv._reference_of

LLVM:
commit 3b9a27b6908040881dad394022f8c472c15c0784
Author: Simon Pilgrim <llvm-dev@redking.me.uk>
Date:   Tue Aug 20 17:54:37 2019 +0000

    Fix typo in comment. NFCI.

* [MLIR] Disable three more tests with MLIR enabled.

This PR disables validate_fuse_gru_inputs, reshape_layout_optimizations4
and reshape_layout_optimizations5:
  1. trivial_in_place_relu_fail: It checks tensors pool offset. There is
     no memory pool in MLIR atm.
  2. validate_fuse_gru_inputs: It creates an infinite cycle in
     MLIR subgraph extraction pass (under investigation).
  3. reshape_layout_optimizations4/5: They fail due to CompiledKernel
     being not expected by CPULayout pass.

* Disable cpu_quant_fusion.qconcat

* [MLIR] Bump MLIR repo 8/20/2019

MLIR_
commit 0cdb20a6add19bc96c20dad28589a1e54e4d8469
Author: Lei Zhang <antiagainst@google.com>
Date:   Tue Aug 20 13:33:41 2019 -0700

    Add spv.specConstant and spv._reference_of

LLVM:
commit 3b9a27b6908040881dad394022f8c472c15c0784
Author: Simon Pilgrim <llvm-dev@redking.me.uk>
Date:   Tue Aug 20 17:54:37 2019 +0000

    Fix typo in comment. NFCI.

* Address Bob's feedback

* Segregate builders op wise

* Style

* Update ngraph.hpp

Modifying CI interface

Static type holders can be initialized after things that make copies of them
are run, leading to `undefined` as the type in the copies.