Edit the export of the project

[Manesx]

I suggest storing the resources after export in a single file without encryption. Information on each attached file (path, offset, size) should be stored in a single file that can be encrypted. When opening a project, the godot engine should access this file for the necessary file.

[Calinou]

Godot already does this on desktop platforms, iOS and Web. For Android, this is already being tracked in #946.