Gameini updates.

The Sims 2 Pets (gc), NHL 2005 (gc), NHL06 (gc), Blood Omen 2 (gc),
R:Racing Evolution: Life in the Fast Lane (gc), World Of Zoo (wii),
Super Mario Galaxy 1 and 2 are affected.

Fixes issue 7067.
Merge pull request #216 from Linktothepast/gameini_updates

Gameini updates.
Remove all trailing whitespaces from our codebase.
Merge pull request #228 from delroth/trailing-whitespaces

Remove all trailing whitespaces from our codebase.
Software backend: Delete forked PixelEngine.

Mostly just zapping a bunch of duplicated code; the only interesting thing
going on here is the changes to the performance counter implementation.