开发日志：
- Colorspace Handler: Altivec conversion functions no longer use vec_splat*(), but instead use literals directly. Fixes compiling for ppc64 systems.
- Cocoa Port: Tidy and tighten up the spacing of certain UI elements.
- Cocoa Port: Fix a few more coloring issues on PowerPC Macs.
- Cocoa Port: When the OpenGL blitter uses CPU-based pixel upscaling, framebuffer fetches no longer swap R and B colors.
- Also silence a compiler warning in DisplayWindowController.h.
- Colorspace Handler: When SWAP_RB is true, ColorspaceConvert555To8888_AltiVec() and ColorspaceConvert555To6665_AltiVec() will now swap R and B colors as intended.
- NDSSystem.cpp: Fix bug where certain inputs would fail to work on big-endian systems. (Regression from commit bcc7421.)