dungeon → inspectors Relation

File in src/app/editor/dungeon	Includes file in src/app/editor/dungeon/inspectors
dungeon_editor_v2.cc	door_editor_content.h
dungeon_editor_v2.cc	object_editor_content.h
dungeon_editor_v2.cc	palette_editor_content.h
dungeon_editor_v2.h	door_editor_content.h
dungeon_editor_v2.h	object_editor_content.h