* QueryState moved to InferRequest
* deprecate ExecutableNetwork::QueryState,chaged tests (without any check yet)
* fix build
* review fixes + build fix
* build fix + review changes
* remove blank line
* style fixes
* test build fixes
* style fix
* style fix
* fixed build of tests
* fix
* mac build fix
* hddl plugin build fix
* clean up unneeded implementation for method
* fixed tests build
* add implementation for getstate, correct getName for MklDNN
* fixed description of state API in comments
* lint fixes
* Rename MemoryState to VariableState
* added tests for cpu for VariableStates, several small fixes in tests and code
* merge fix
* lint fix
* remove whitespaces
* spaces fix
* fix in test to make it workable for all plugins
* fix typo
* fix test for gna
* remove extra comment
* fix test for gna
* Add IEGeneric node type handling.
* Remove dependency on plugin_api library.
IEGeneric type name is passed via Visiotr API as new syntetic atribute.
* Add custom operations support
* Fix charachter literals comparison.
* Pass custom opsets to CNNNetwork:serialize().
IE extensions are stored in ngraph CNNNetwork and later used to pass
custom opsets to serialization transformation.
* Refactor custom ops tests to use template_extension library.
* Add comment on __generic_ie_type__ purpose.
Svetlana Dolinina