Preprocess maps' embedded effects to temporarily disable unused framebuffers

[BinToss]

Pros

• Only the necessary post-processing framebuffers will be enabled as part of the Geometry framebuffer. If none are needed, disable G-Buffer until needed by another map.

Cons

• This may increase the initial loading time of a map.
• If the user forces a new effect to load, they will either need to manually enable the relevant framebuffers (OS4.0) or indicate them in the effect's header (OS4.1+)

How

• Using/Include lines in header of effects scripts? 4.1+ planned support
• Pre-process the entirety of each and every effect for relevant buffers? OS 4.0 compatibility