FIX SH-862 SH-1246 SH-1565 SH-1566 Update render cost algorithm
FIX SH-862 SH-1246 SH-1565 SH-1566 Update render cost algorithm

render cost algorithm triangle count is now scaled to be more balanced vs
texture/particle count. In addition added factors for light-emitting and
media texture primitives. Algorithm should be near "final" at this point.

gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm