Clean up style nits in RenderInfantry.
Add support for multiple stand animations.
Hook up C&C infantry.
Hook up RA infantry.
Merge pull request #4006 from pchote/alternate-stand-animations

Alternate stand animations
Merge pull request #4008 from pchote/r8-fix

Improved R8 support.
brought back the MoveFlash

closes #2592
removed unused Iron Curtain palette