IntelGPU backend: Switch to new clDNN: Fixed _GLIBCXX_USE_CXX11_ABI redifinition error during ngrap-bridge build (#3049)

* Use updated reduced-size clDNN

* Remove the obsolete BOOST_VERSION variable

* Cleanup how compile flags set and used by nGraph and external projects.
Set C++11 through CMake and pass it down to external projects.
Prefer CMake variables such as CMAKE_POSITION_INDEPENDENT_CODE and
CMAKE_CXX_STANDARD instead of explicitly setting compiler dependent
flags.
Create json compilation database for external projects.
CMAKE_CXX_FLAGS is used as common global options for nGraph and external
projects.
add_compile_options() is used for local options for current and sub
directories.
add_definitions() is used for setting definitions for current and sub
directories.
Note: Global options are not passed down to some external projects.
Note: mkl-dnn resets CMAKE_CXX_FLAGS internally.
Note: TBB and MLSL are not CMake based.
Noet: Eigen and json is header only library.

* Fix error.

* Fix error. (second attempt)

* Cleanup code.

* Allow check for undefined macro.

* Try to fix cldnn issue.

* Set type for CMake arguments.

* Pass C++ standard to protobuf.

* Pass C++ standard down to TBB.

* Change how Clang specific flags are handled.

* Fix error.

* Workaround for compile error on Baidu's PDPD docker.

* Fix windows build error.

Switch to clDNN version with conformance fix for 3 ONNX models (DenseNet-121, Inception-v2, ResNet-50) (#2982)

IntelGPU backend: Select operation fix (clDNN doesn't support int32 data type); Switched to clDNN 14.0 drop (#2702)

* Set rpath for mkl-dnn.

* Set library rpath to  on Linux.

* Use patchelf to set rpath of prebuilt mklml library.

* Add patchelf to Linux Dockerfiles.

* Revert "Add patchelf to Linux Dockerfiles."

This reverts commit 1769505a866061552942e19467ddcc0dad0922e8.

* Revert "Use patchelf to set rpath of prebuilt mklml library."

This reverts commit 726f6553a0450520328607177d64baf48fa93dd2.

* Copy cldnn runtime.

* Copy mlsl libraries.

Changing clDNN to latest commit.

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

* Fix ONNX, protobuf integration.

* IntelGPU backend: Use new clDNN version 12.1

* PR2280. Comments addressed

* update licenses for 2019

* style

* Forward nGraph's C/C++ compiler, build type and generator information to cmake based external projects.

* Fix typo.

* Pass generator related info properly.

* Googletest is using DEBUG_POSTFIX

* TBB uses postfix for debug lib.

* Fix typo.

* files pulled from bob/winbuild

* fix compile problems

* fix a few windows build errors

* add windows file to exclude from git

* add comment why change was made

* revert obsolete change

* more cleanup

* building interpreter and unit test on windows with DLLs

* Add flag for windows to export all symbols. Short term fix.

* enable MD build

* address warnings

* dump all windows build results to a single directory

* fix windows backend dll open issue

* remove debug

* fix file iterator for windows

* fix merge error

* fix test failure

* change header from h to hpp in hopes of making python happy

* address more linux build issues

* fix visibility enable

* IntelGPU backend: Use clDNN matrix operations for nGraph::Dot

* Update unit_test.manifest

* build seems to work

* cleanup

* add backsuport for using pre-built clDNN library

* fix typo