PPCAnalyst: refactor, add carry op reordering and non-cmp reordering

Tries as hard as possible to push carry-using operations (like addc and adde)
next to each other. Refactor the instruction reordering to be more flexible
and allow multiple passes.

353 -> 192 x86 instructions on a carry-heavy code block in Pokemon Puzzle.
12% faster overall in Pokemon Puzzle; probably less in typical games (Virtual
Console games seem to be carry-heavy for some reason; maybe a different
compiler?)

Source/Core/Core/PowerPC/PPCTables.h

@@ -38,6 +38,7 @@ enum
 	FL_LOADSTORE       = (1<<19),
 	FL_SET_FPRF        = (1<<20),
 	FL_READ_FPRF       = (1<<21),
+	FL_SET_OE          = (1<<22),
 };
 
 enum