Always clamp in ToRGB[A]?().

Before we only clamped with SSE, better to be consistent.  This may also
be slightly faster.
Missing include for Linux/etc.
And fix an issue building on Android.
Merge pull request #7035 from unknownbrackets/gpu-minor

Always clamp in ToRGB[A]?()
Rebase RadarNyan work on Generate version while build on Wiondows
Merge branch 'windows-exe-version' of https://github.com/RadarNyan/ppsspp into verbuild

Conflicts:
	Windows/version.rc