* prep work

* wip

* remove debug

* style

* update unit test

* [ONNX] Add support for ONNX sinh op

* [ONNX] Test the sinh op and improve an error msg about not supported op version

* [ONNX] Fix the failing tests by moving sinh to opset 1

* [ONNX] Apply clang-format to fix failing CI builds

* [ONNX] Add and test ONNX cosh op

* [ONNX] Add and test ONNX cosh op

* IntelGPU backend: Min and Max operations fix

* IntelGPU backend: PR2357 style changed if/else to switch/case

* IntelGPU backend: PR2357 passed tests adjusted

* IntelGPU backend: PR2357 failed test removed

* Fix Klocwork issues

* style

* fix windows build

* wip

* mkldnn seems to build

* address various errors building cpu backend with MSVC

* wip

* wip

* Windows support.

    * Delete dependency of LLVM when building with MSVC.

* Define EIGEN_HAS_CONSTEXPR when using MSVS.

* Fix MSVC build errors.

    * Incorrect argument to 'decltype'. It is VC bug. Work around the
    error with rename the function into different name.

    * MINMAX issue in matmul_bias.cpp.

    * Correct TBB_LINK_LIBS on Windows.

* Fix MSVC link errors.

    1. redefine problems in cpu_builder.obj and convert_layout.obj. It
    is because cpu_builder.hpp contains an implicit implement of
    function runtime::cpu::Builder::build for cpu::op::ConvertLayout.
    The fix is deleting the registration item in cpu_builder.cpp and
    using REGISTER_CPU_OP_BUILDER in convert_layout.cpp.

    2. Fix the dependent libraries path on Windows. It should be *.lib
    not *.dll when linking these libraries.

* Set visibility for CPU backend to fix the MSVC linker error.

    MSVC complain that the .def file exceed the size limitatoin
    when using CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS. All the functions
    with CPU_BACKEND_API are used by unit test or nbench.

* Fix unit test build errors on Windows.

    * backend_unary_elementwise.in.cpp: Use all_close_f to test case
    BACKEDND sqrt

    * cpu_fustion.cpp: Fix 'NUM_STEPS' cannot be implicitly
    captured because no default capture mode has been specified

    * cpu_test.cpp: Use portable setenv and unsetenv from misc.hpp.

    * tools.cpp: Use portable fpopen from misc.hpp.

    * misc.hpp/misc.cpp: Add new files to host misc functions that Linux and
    Windows using different implementation.

* Make Debug mode work with MSVC.

* style

* fix line ending

* remove general splitting code. New code in hybrid transformer.

* more cleanup

* builds

* pass unit test

* cleanup

* -   check to verify if the data_slices shares the same weights

* add the serialized graph

* - explicitly fuse the data slices, so all the parameter partitioned by slices are in contigous memory location
- fixes all the failing test cases

* Fix inconsistent ifdefs that broke macos build
Add quant ops to op table
Define serialize/deserialize for Quant con, avg pool, max pool
Add empty cases to interpreter

* iGPU cases.

* Include quant ops

* Define ngpu emitters

* Use pre-built tbb on macos

* Review comments

* Only copy lib when changed

* IntelGPU backend: fix online build

* PR2323. Comments addressed

* Update external_cldnn.cmake

* Update CMakeLists.txt

Update CODEOWNERS

* Add error check for user setting CMAKE_BUILD_TYPE

* fix case where CMAKE_BUILD_TYPE is not set

* update hybrid unit test

* remove unused files

* add graphviz to test

* add ability to add attributes to graphviz nodes

* tweak colors

* more interesting graph

* update test model

* add memory management passes

* add Dump

* wip

* remove in-place code from memory layout

* Check if the pointer returned by malloc is nullptr.

* Use ngraph_error.

* Add more pointer checks.

* Replace malloc and free with ngraph_malloc and ngraph_free.

* Divert dynamic offset to reference

* update gpu manifest

* Avoid dynamic cast

* Add table with status of supported operators.

* Update comments for unimplemented operators.

* Update comment to tables.

* Update table with Jira tickets.

* Update supported_ops.md

* Fix typo.

* [ONNX] Enable softmax test

* Update onnx_import.in.cpp

* change __expf to exp for accuracy

* A backend property request

* Update backend.hpp

* PR2281. Add get property function to CPU backend

* Update backend.hpp