Update to v103 WIP release.

byuu says (in the WIP forum):

Changelog:

  - higan: cheat codes accept = and ? separators now
      - the new preferred code format is: address=value or
        address=if-match?value
      - the old code format of address/value and address/if-match/value
        will continue to work
  - higan: cheats.bml is no longer included with the base distribution
      - mightymo stopped updating it in 2015, and it's not source code;
        it can still be pulled in from older releases
  - fc: improved PAL mode timing; use PAL APU timing tables; fix PAL
    noise period table [hex\_usr]
  - md: support aborting a Z80 bus wait in order to capture save states
    without freezing
      - note that this will violate accuracy; but in practice a slight
        desync is better than an emulator deadlock
  - sfc: revert DSP ENDX randomization for now (want to research it more
    before deploying in an official release)
  - sfc: fix Super Famicom.sys/manifest.bml APU RAM size [hex\_usr]
  - tomoko: cleaned up make install rules
  - hiro/cocoa: use ABGR for pixel data [Sintendo]

Note: I forgot to change the command-line and drag-and-drop separator
from : to | in this WIP. However, it is corrected in the v103 official
binary and source published on download.byuu.org. Sorry about that, I
know it makes the Git repository history more difficult. I'm not
concerned whether the : → | change is part of v103 or v103r01 in the
repository, and will leave this to your discretion, Screwtape.

I also still need to set the VDP bit to indicate PAL mode in the Mega
Drive core. This is what happens when I have 47 things I have to do,
given how lousy my memory is. I miss things.

hiro/cocoa/widget/canvas.cpp

@@ -188,7 +188,7 @@ auto pCanvas::_rasterize() -> void {
     auto target = (uint32_t*)[bitmap bitmapData];
 
     if(auto icon = state().icon) {
-      icon.transform();
+      icon.transform(0, 32, 255u << 24, 255u << 0, 255u << 8, 255u << 16);  //Cocoa uses ABGR format
       memory::copy(target, icon.data(), icon.size());
     } else if(auto& gradient = state().gradient) {
       auto& colors = gradient.state.colors;