JIT: Initial FPRF support

Doesn't support all the FPSCR flags, just the FPRF ones.
Add PPCAnalyzer support to remove unnecessary FPRF calculations.

POV-ray benchmark with enableFPRF forced on for an extreme comparison:
Before: 1500s
After, fmul/fmadd only: 728s
After, all float: 753s

In real games that use FPRF, like F-Zero GX, FPRF previously cost a few percent
of total runtime.

Since FPRF is so much faster now, if enableFPRF is set, just do it for every
float instruction, not just fmul/fmadd like before. I don't know if this will
fix any games, but there's little good reason not to.

Source/Core/Core/PowerPC/PPCTables.cpp

@@ -25,6 +25,14 @@ GekkoOPInfo *m_infoTable63[1024];
 GekkoOPInfo *m_allInstructions[512];
 int m_numInstructions;
 
+const u64 m_crTable[16] =
+{
+	PPCCRToInternal(0x0), PPCCRToInternal(0x1), PPCCRToInternal(0x2), PPCCRToInternal(0x3),
+	PPCCRToInternal(0x4), PPCCRToInternal(0x5), PPCCRToInternal(0x6), PPCCRToInternal(0x7),
+	PPCCRToInternal(0x8), PPCCRToInternal(0x9), PPCCRToInternal(0xA), PPCCRToInternal(0xB),
+	PPCCRToInternal(0xC), PPCCRToInternal(0xD), PPCCRToInternal(0xE), PPCCRToInternal(0xF),
+};
+
 GekkoOPInfo *GetOpInfo(UGeckoInstruction _inst)
 {
 	GekkoOPInfo *info = m_infoTable[_inst.OPCD];