doc MAINTENANCE update transition manual according to recent changes
yang-library related functions are implemented now
* ly_ctx_get_disabled_module() and the associated ly_ctx_get_disabled_module_iter() | - | ^
* ly_ctx_info() | ::ly_ctx_get_yanglib_data() | Clarification of what to expect as the output of the function and possibility to specify custom content ID.
* ly_ctx_get_module_set_id() | ::ly_ctx_get_change_count() | The functionality is the same but the exact meaning of the value was clarified.
- * ly_ctx_new_ylmem() | TBD | Not yet implemented feature.
- * ly_ctx_new_ylpath() | TBD | ^
* - | ::ly_ctx_unset_searchdir_last() | Extend the functionality of the ::ly_ctx_unset_searchdir() to make its use easier.
* ly_ctx_get_module_older() | - | Removed functionality.
* - | ::ly_ctx_get_module_implemented() | Supplement for ::ly_ctx_get_module()
