Plan for layouts

[DarthGandalf]

• start with some base framework code, which will be unused for now
• then add support for .sprite files (should be easy to port from old C++ code)
• then fallback fs setup
• then redo main menu on json
• then reimplement translation
• then add other panels like the quest/inventory I shown off earlier, because texts on all of them needs to be translateable (most of texts are on char creation screen and char stats panel though)