* Add on_adpater() implementation for special body parts.
* Remove NodeConverter and LayerCreator for Loop. Add WA for different number of inputs during Loop init by constructor and visit_attributes().
* Format files.
* Implement use case external_port_id=-1 for output port_map,change API for map_type_in_function.
* Replace GetStrAttr() with GetInt64Attr().
* Correct WA for input_offset when using visitorAPI. It shall search all input descriptions for duplicated indexes.
* Apply proper file format.
* Throw exception when input_offset < 0.
* Add more detailed description for input_offset WA.