Update to v103r27 release.

byuu says:

Changelog:

  - hiro/windows: set dpiAware=false, fixes icarus window sizes relative
    to higan window sizes
  - higan, icarus, hiro, ruby: add support for high resolution displays
    on macOS [ncbncb]
  - processor/lr35902-legacy: removed
  - processor/arm7tdmi: new processor core started; intended to one day
    be a replacement for processor/arm

It will probably take several WIPs to get the new ARM core up and
running. It's the last processor rewrite. After this, all processor
cores will be up to date with all my current programming conventions.

ruby/video/cgl.cpp

@@ -78,7 +78,7 @@ struct VideoCGL : Video, OpenGL {
     if(!ready()) return;
     @autoreleasepool {
       if([view lockFocusIfCanDraw]) {
-        auto area = [view frame];
+        auto area = [view convertRectToBacking:[view bounds]];
         OpenGL::outputWidth = area.size.width;
         OpenGL::outputHeight = area.size.height;
         OpenGL::output();
@@ -110,6 +110,7 @@ private:
       [view setOpenGLContext:context];
       [view setFrame:NSMakeRect(0, 0, size.width, size.height)];
       [view setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
+      [view setWantsBestResolutionOpenGLSurface:YES];
       [_context addSubview:view];
       [context setView:view];