implement Iris HandRenderer

[kurrycat2004]

This fixes:

• shaders applying to stuff rendered in the WorldRenderLast forge event (and therefore waypoints being blindingly bright)
• shaders applying to overlays (water overlay etc.)
• held items being rendered transparent sometimes (maybe, couldnt test)

[mitchej123]

@Caedis Anything obvious need to be done here for offhand support?

[Caedis]

https://github.com/GTNewHorizons/Angelica/blob/master/src/main/java/com/gtnewhorizons/angelica/dynamiclights/DynamicLights.java#L371-L386 to give you an example.