iR 594 Audit and add postprocessing effects

[MbfloydIR]

Improve PostProcessing API

Added the missing post processing effects

GodRaysEffect needs light source that is not available, so it is left out

The following effects are aded but no difference can be seen when applied

SMAAEffect SSAOEffect SSREffect DepthOfFieldEffect BloomEffect SSGIEffect TRAAEffect MotionBlurEffect ShockWaveEffect

[DanielBelmes]

@MbfloydIR you have some errors on the checks here btw. Double check your commit hooks are running.

[HexaField]

closing in favour of continued work https://github.com/EtherealEngine/etherealengine/pull/10148