* Added VariableState to Plugin API documentation
* More fixes for plugin documentation
* Added ie_memory_state.hpp to documentation
* Added proper dependencies between C++ and Plugin API targets
* Fixed issues in public C++ API reference
* Fixed issues in public C++ API reference: part 2
* Removed obsolete entries from EXCLUDE_SYMBOLS in doxygen config
* Fixed path to examples, tag files for Plugin API doxygen file
* Put impl to a private section for VariableStatebase
* Fixed examples path to Plugin API: part 2
* Fixed path to examples in main ie_docs doxygen file
* Replaced path to snippets; otherwise path depends on how cloned repo is named
* Added path to snippets for ie_docs doxygen file as well
* Great amount of fixes for documentation
* Removed IE_SET_METRIC
* Fixes for C API documentation
* More fixes for documentation
* Restored Transformations API as a part of Plugin API
* Fixed tag files usage for Plugin API
* Fixed link to FakeQuantize operation