* Initial change to allow saving graphto IR without meta_info
* Update saving and restoring functions, add more comments
* Add unit tests for define_data_type() function
* Fix wrong name
* Update condition
* Update meta_data checks
* Update data_type restoretion and missed outpurt ports handling
* Update and add new test
* Update comments
* Remove commented code
* Rename function
* Update temporary Result operations processing
* Remove define_data_type function
* Move node_normalize_output function to Op class methods
* Update comments
* Update comments