* [MO] Add support to moc_frontend of ":" as delimiter for --input
Additions:
Changed default logic for 'Place::get_in(out)put_port' to return nullptr
Changed default logic for 'InputModel::get_place_by_tensor(operation)_name' to return nullptr
* Corrected comments in code
* Missing empty line
* Clang format fixes
* Fix review comments
* Updated test to verify review comments fixes
* Update unit tests after rebase
* Apply review comments
* Static library for ngraph::frontend_manager
* Static + Shared versions
* Fix CI
* USE_STATIC_FRONTEND_MANAGER macro
* Set USE_STATIC_FRONTEND_MANAGER compile definition as public
* Revert back incorrectly removed line
* Apply more review comments
* [NG Frontend] Introduce classes and macros for Frontend-specific exceptions
* [nGraph Frontend] Python bindings
Exposing Python API for nGraph FrontEndManager introduced in PR #5470
* [nGraph Frontend] Python bindings
Exposing Python API for nGraph FrontEndManager introduced in PR #5470
* Added docs + moved sources to 'pyngraph/frontend'
* Fix issues after rebase
* Fix clang
* Moving ngraph/python/tests_cpp to ngraph/python/tests/mock
* Fix cmakelists-related comments
* Apply review comments
* Added dots to docstrings
* Cmake - Set target properties for ARCHIVE/PDB/COMPILE_PDB as well as for LIBRARY_OUTPUT_DIRECTORY