Particle effects baking support (EFCT)

[Mauler125]

Work in progress particle system support. Currently, only the DMX parser works. Jobs left to be done:

• Reverse engineer 183 particle operator classes and implement deserializers for them.
• Implement pak writer.
• A nice bonus: allow packing from JSON (or RSON if that gets ever finished) so users can tweak values more easily.