Bare bones of new json and png handling implemented.
Bare bones of new json and png handling implemented.

SomeBall-1/tagpro-map-editor,steppin/tagpro-map-editor,PeterReid/tagpro-map-editor,PeterReid/tagpro-map-editor,steppin/tagpro-map-editor,SomeBall-1/tagpro-map-editor