Merge pull request #21041 from sivanov-work:gin_gout_concept
G-API: GAPI introduce compile guard for some types for gin/gout params passing
* Initial for taged solution
* Move out tags to gtags.hpp & add protection for own::Mat
* Add compile guard to proper place
* Fix MACRO concat
* Add unit tests
* Remove class MACRO injection due to Python3
* Revert back unproper changes
* Apply comments: reuse shape from traits
* Throw away unused gtags
* Apply comments
* Handle own::*
* Fix test
* Fix test(1)
* Fix unix build
* Try on type list
* Apply comments
* Apply comments
* Fix warning