Move register_common_passes outside of #ifndef DEX_ONLY

Cherry-pick "Common pass registration for codegen and Dex (#1642)" to r0.8

* Common pass registration for codegen and Dex

* Make return indices optional for cpu workspace insertion

* fix Sphinx version for Jenkins and update nG versioning

* Try stable verison of Sphinx 1.7 instead

* postpone adding dropout op to make CI building happy

* sort op list

* use op_tbl

* throw unsupported_op exception when appropriate

* remove dead code

* Add more use of NGRAPH_OP macro to remove boilerplate definitions/implementations

* revert moving class out of namespace

* change from switch to dispatcher map

* [ONNX] Squeeze op

* Review fix pt. 1

* Type change

* [ONNX] Transpose op

* Review fix pt. 1

* Review fix pt. 2

* [ONNX] Slice op

* Review fix pt. 1

* Review fix pt. 2

[ONNX CI] nGraph-ONNX CI Hotfix

* refactor distributed code

* add test file changes

* add distributed class

* update test file

bug fix for nvgpu goe

* pass args instead of pointer to array

* add 3d tiled reshpae

* working version

* add shared mem version of 2d, 3d reshape

* remove unused code

* style

* resolve commits

* add test for 3D reshape, some 3D reshape will be treat as 2D

* Add support for Quantize op via mkldnn for IA backend (codegen + DEX)

* PR feedback addressed

* Use call_with_validate

[ONNX] Unary ops

* add very basic test for Coordinate

* add correct license header

* remove contains_key()

* fix logic error

* wip

* wip

* serializer update to use op_tbl

* fix deserialize

* remove Remainder

* Move to MKLDNN v0.16. Git hash picks up some bug fixes post v0.16

* Temporary workaround for an MKLDNN bug

* reset workspace manager after use

* use unique_ptr for pass memory manager

* Add Reshape passthrough when reshape is logical only.

* Move address conditional to RT in case reference is different but both pointer values are the same.

* Add exclusion to common function collection pass so that tensor name check
is applied during emission for ops that pass inputs through.

* Add propagate_in_place_input/output to handle
propagating inputs and outputs through the non-destructive ops in the graph.

* Remove references to direct execution.

* Remove checks for in-place transpose.

* Formatting.

* elementwise updated

* add support for constructing any order arg list

* add comment for using node_names

* use array instead of vector for args/output

* fix per review comment

* remove dead code

* Remove "view"
Simplify layout

* Fix merge error

* fix build error

* PR1602. IntelGPU backend. Compilation fixed.

* [AIBT-446] Run nGraph-ONNX tests on nGraph PRs

* Cloning nGraph from NervanaSystems

* Updated CI path to "ngraph/.ci/onnx/jenkins"

* Updated permissions

* Fixed path in find command

* Changes to notification message

* Editing CMakeCache.txt instead of removing

* Removing old ngraph wheels; cloning pybind11 if necessary

* Fixed path in removing ngraph wheel

* [ONNX] Non-linear operators

* Review fix pt. 1

* Review fix pt. 2

* Non-linear tests

* style check

* Exception fix

* Test fix

* add unsupported_op exception

* unsupported_op test

* add printout of unsupported op in model

* fix GPU dispatcher check

* fix test designation

* catch exceptions on single file runs too

* add unsupported_op exception where needed

* remove unsupported_op class

* add unassigned op exception

* add unit test

* catch unsupported op in nbench

* add cpu test back

* update all latest merges

* mode change