JIT+Emitter: support locking flags

This helps us avoid accidentally clobbering flags between two instructions
when the flags are expected to be maintained. Dolphin will of course crash
immediately, but at least it will crash loudly and alert us of the mistake,
instead of forcing hours of bisecting to find the subtle way in which the JIT
has managed to sneak a flag-modifying instruction where there shouldn't be one.
DSPJitRegCache: Use std::array to represent the register arrays
Replaced generalized instances of GCM with ISO

Renamed various commands to refer to ISO instead of GCM for consistency,
as the commands are used for both Wii and GameCube files.

CompressGCM --> CompressISO
DeleteGCM --> DeleteISO
MultiCompressGCM --> MultiCompressISO
MultiDecompressGCM --> MultiDecompressISO
SetDefaultGCM --> SetDefaultISO

Fixed COMPRESSISO

Fixed missing "COMPRESSISO"

Fixed more COMPRESSISO

Final fix for COMPRESSISO
NetPlayClient: Remove unused macro
ReadDataFromFifo is always called with len = 32.  Remove the parameter to enable optimizations.

And rename some variables around it to be less confusing.
Create new Movie menu.
Merge pull request #1188 from comex/ReadDataFromFifo

ReadDataFromFifo is always called with len = 32.  Remove the parameter t...
Fix focus detection on OS X by replacing wxGetActiveWindow with wxWindow::FindFocus.

wxGetActiveWindow is implemented as "return NULL" on OS X, while
wxWindow::FindFocus works.  On Windows, the difference is in the use of
GetActiveWindow() vs. GetForegroundWindow().  A MSDN comment says:

> A system has only one active window, which GetForegroundWindow()
> returns. GetActiveWindow() seems to return the same window as
> GetForegroundWindow() if the foreground window belongs to the current
> thread. Otherwise, it always returns null, rather than the topmost
> window of the calling thread.

Since we are on the GUI thread, it shouldn't make any difference.
Remove useless STACKALIGN macro.

It only ever did anything on 32-bit OS X.

Anyway, it wasn't even on the right functions, and these days
ABI_PushRegistersAndAdjustStack should handle maintaining the ABI
correctly.
Merge pull request #1191 from comex/wxGetActiveWindow

Fix focus detection on OS X by replacing wxGetActiveWindow with wxWindow...
Merge pull request #1186 from lioncash/macro

NetPlayClient: Remove unused macro
Merge pull request #1190 from comex/stackalign

Remove useless STACKALIGN macro.
Merge pull request #1180 from Stevoisiak/Replace-GCM-With-ISO

Replaced GCM functions with ISO functions
Merge pull request #1177 from lioncash/array

DSPJitRegCache: Use std::array to represent the register arrays
Merge pull request #1134 from RachelBryk/movie-menu

Create new Movie menu.
Merge pull request #1166 from FioraAeterna/flaglocking

JIT+Emitter: support locking flags