DolphinWX: Move the CodeView debugger view over to wxGraphicsContext

This is a more advanced drawing 'backend' over the previous one and allows us to control things like transparency and anti-aliasing, etc.
DolphinWX: Parenthesize some expressions in CodeView.cpp
Revert "Catch broken configurations inside of the Post Processing shaders."
Merge pull request #872 from dolphin-emu/revert-828-pp-shader-catch-broken-config

Revert "Catch broken configurations inside of the Post Processing shader...
JIT: fix incredibly silly mistake in fmul rounding patch
Merge pull request #865 from lioncash/debugger-stuff

DolphinWX: Use wxGraphicsContext in the Code View for the debugger.
Merge pull request #874 from FioraAeterna/fixidiocy

JIT: fix incredibly silly mistake in fmul rounding patch
CommandProcessor: mark some functions as static
Merge pull request #838 from Tilka/unused

CommandProcessor: mark some functions as static