JSON Entity Declarations

[NicoM1]

As title, faaaaaaaaaaaaaaarrrrrr future, not that it would be too hard, just so much is more important first

[Ohmnivore]

Awwww yisssss! I've always loved JSON more than XML (at least it's easier to type). I'll see what I can help with (for my json needs i've been using tjson -> pretty solid library).

[NicoM1]

gonna redo this soon, to match the re-factored entity parser...blazing through issues @sruloart ;)

[NicoM1]

progress in the JSON branch, missing some stuff but all basic parsing is in (no components, templates, or percentage-based positions yet)