* Add new HybridTensor class. Remove Tensor parent.

* upate more backends

* fix GPU tensor

* update intel gpu backend

Added NGRAPH_JSON_ENABLE to conditionally enable code/features relying on external JSON libraries (#2821)

* Update LLVM to 8.0.0

* Required codegen changes to use LLVM 8.0.0

* First rev of NGTF build from nGraph

* Copyright year update

* WIP

* Update test_ngtf_build.py

Updated with the latest repo URL

* Add NgraphTestCase test runner class

* Code improvements

* clang-format

* Add support for multiple output types

* Add reading inputs/outputs from files

* Refactor model_quant_conv_linear_3d

* Add shape checking to NgraphTestCase

* Add expected output shape to model_quant_conv_linear_3d

* Code review

* Remove small data files and move values to test code for legibility

* clang-format

* Refactor model_quant_conv_linear_2d

* Refactor model_dequantize_linear_1d_zero_scale_uint8_negative_axis

* Refactor model_dequantize_linear_1d_zero_scale_int8_4d

* Refactor model_dequantize_linear_1d_zero_scale_int8

* Refactor model_dequantize_linear_1d_zero_scale_uint8

* Refactor model_dequantize_linear_scalar_zero_scale_int8

* Refactor model_dequantize_linear_scalar_zero_scale_uint8

* Refactor model_quantize_linear_axis_negative

* Refactor model_quantize_linear_axis_zero

* Refactor model_quantize_linear_zero_point

* Add shape checking to NgraphTestCase::run

* Refactor NgraphTestCase::run

Workaround for gcc 4.8.2: Suppress mkl-dnn warning manually since pragma GCC diagnostic ignored is not working on gcc 4.8.2 (#2812)

* IntelGPU backend: Set of fusion operations

* avoid test failed after pr merge

* Add numeric_limits for bfloat16 type

* fix constexpr

* Fix broken test in shape specialization pass

* Roll back unnecessary changes to Add

* [ONNX] Extended types support for NgraphTestCase

* [ONNX] Move the value comparators to the NgraphTestCase class

* Add ConstantToBroadcast pass

* address review comment

* fix merge error

* Don't create a separate .so for python onnx importer.

* Pass outer make's -j values to sub make used in python_wheel.

* don't emit empty objects

* Add method to set the option to add output shapes to json

* more cleanup

* constant/io sizes

* add sizes and counts for all data io in a json

* Add details to model sizing

* change filemode

* change filemode

* fix filemode

* Adding auto pad to convolution

* Added auto pad to pooling ops and moved auto pad computation to utility method

* Added serializer support for autopadding. workaround for clang macro warning

* Style fix

* Addressed PR feedback

* Fix docstrings for same_upper and same_lower

* CMAKE_CFG_INTDIR does not work at install time. Use CMAKE_INSTALL_CONFIG_NAME on Windows.

* Rename NGRAPH_*_INSTALLSRC_DIRECTORY to NGRAPH_*_INSTALL_SRC_DIRECTORY

* wip

* Make a copy of the FunctionCall's internal function prior to compilation

* Make sure unit test is only included with interpreter and cpu backends enabled

* include rc version in NGRAPH_VERSION_SHORT

* Create a separate version string for python wheel.

// ... some content ... \
On Clang or AppleClang
PaddlePaddle sets -Werror=comment

* - add method to determine if the function contains nodes with dynamic shape
- add virtual method to node to determine if the node contains any partial shape.

* - add support to reshape op to determine if the reshape node as dynamic attributes

* Address PR comments

* - check all the inputs to determine if the node has dynamic_shape
- addressed Adam comments

* - add support to abort graph match if the nodes are dynamic

* Addressed PR comments

* - remove strict check on dynmic shape in the matcher

* Added EnumMask.

* added unit tests for EnumMask.

* fix.

* forgot to save file.

* add pass property to matcher.

* Clean up and made interface more restrictive, easier to use.

* addressed PR feedbacks.

* Move ONNX tests to the test/onnx subdirectory

* Change non-conforming test names

* Refactor quant and reshape tests to separate files

* Refactor tests into separate files

* Rename test in GPU excludes

* Temp.

* Put all the dummy files.

* Remove some compile errors.

* WIP: Add gather and gather_nd kernels.

* Temp save.

* Update comments for gather.

* Implement reference gather.

* Validate and infer shape.

* Style.

* Fix compile issues.

* Add serializer support.

* Fix interpreter compilation issues.

* WIP: Add UT

* WIP: Add UT

* gather_nd UT passing.

* Fix gather with no axis.

* Fix gather issue.

* Update unit_test.manifest for backends and add gather, gather_nd  support for generic cpu.

* Add type_prop tests.

* Add CPU builders.

* Fix codegen.

* Make some UT numbers more readable.

* Style.

* Update Copyright Year

* Update Copyright Year

* Fix Typo.

* Remove unused variable.

* fix nv gpu build error

* Fix intel gpu compilation.

* Add basic docstring.

* Allow 1D indices for gather_nd.

* Allow scalar indices for gather.

* Update unit_test manifest files.

* Style.

* Add indices element type check and add failing type_prop checks.

* Update docstring.

* Fix incorrect test names in unit_test.manifest

* [ONNX] Support for Gather op

* Remove unneeded broadcast

* Remove unused include

* Set correct default value for axis

* Add some unit tests for provenance with node replacement

* One more test

* add provenace propagation

* Adds ability to control whether provenance is on or off

* Add some unit tests for provenance with node replacement

* One more test

* add provenace propagation

* Adds ability to control whether provenance is on or off

* Removes extraneous semicolon

* Fixes include header errors

* Reimplements provenance enable flag using global variable

* Fixes style issues.

* Adds newline at the end of file.

* Fixes function return type.

* Adds RAII mechanism for localizing provenance enable state in testing.

* Improves getter/setter method name to match variable name.

* Adds s_ prefix to global variable provenance_enabled.