JIT: unify subfe/submex/subfex/adde/addmex/addzex code

Shorter, plus should make future optimizations easier.
JIT: unify subfcx and addcx code

Again, shorter and should make future optimizations easier.
Fix AArch64 MOVI2R helper function.
In the case of a zero immediate, it wouldn't generate code at all.
Also in the case of max u32/u64, use ORN to optimize it.
JIT64: optimize carry calculations

Omit carry calculations that get overwritten later in the block before they're
used. Very common in the case of srawix and friends.
JIT64: optimize carry calculations further

Keep carry flags in the x86 flags register if used in the next instruction.
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?)
PPCAnalyst/JIT: add ability to easily toggle branch and carry merging
UnitTests: Fix misplaced braces in the x64Emitter tests
Merge pull request #1078 from lioncash/brace

UnitTests: Fix misplaced braces in the x64Emitter tests
InputCommon: Initialize NSDictionaries using literal syntax.
Merge pull request #1079 from lioncash/lol-objc

InputCommon: Initialize NSDictionaries using literal syntax.
Fix Fastmem in JitIL for massive speed gains.

JitIL's fastmem was stubbed out when Sonicadvance1 merged JitARMIL
into the tree. Since JitARMIL has been deleted, I simply re-arrange
the inheritance to base JitIL on Jitx86Base, so it can inherit the
backpatch function.

Povray Benchmark: 1985 seconds to 1316 seconds.
Kill off the wx casts within InputCommon and GLInterface.

All because someone didn't actually return the wxWindow handle for the edge case.
Merge pull request #1075 from phire/jitil-fastmem

Fix Fastmem in JitIL for massive speed gains.
JIT: fix JIT with conditional continue off, again
MMU: properly check MEM1 range on Gamecube games

Fixes at the very least Rogue Squadron II crashes.
Merge pull request #1082 from FioraAeterna/fixccagain

JIT: fix JIT with conditional continue off, again
x64Emitter: add LZCNT/TZCNT support and detection

Also add a unit test.
JIT: use LZCNT in cntlzw
Merge pull request #1083 from FioraAeterna/lzcnt

Add LZCNT support, use in cntlzw