Update to v106r44 release.

byuu says:

Changelog:

  - hiro/Windows: use `WS_CLIPSIBLINGS` on Label to prevent resize
    drawing issues
  - bsnes: correct viewport resizing
  - bsnes: speed up window resizing a little bit
  - bsnes: fix the cheat editor list enable checkbox
  - bsnes: fix the state manager filename display in game ROM mode
  - bsnes: fix the state manager save/rename/remove functionality in
    game ROM mode
  - bsnes: correct path searching for IPS and BPS patches in game ROM
    mode
  - bsnes: patch BS-X town cartridge to disable play limits
  - bsnes: do not load (program,data,expansion).(rom,flash) from disk in
    game pak mode
      - this is required to support soft-patching and ROM hacks
  - bsnes: added speed mode selection (50%, 75%, 100%, 150%, 200%);
    maintains proper pitch
  - bsnes: added icons to the menubar
      - this is particularly useful to tell game ROMs from game paks in
        the load recent game menu
  - bsnes: added emblem at bottom left of status bar to indicate if a
    game is verified or not
      - verified means it is in the icarus verified game dump database
      - the verified diamond is orange; the unverified diamond is blue
  - bsnes: added an option (which defaults to off) to warn when loading
    unverified games
      - working around a bug in GTK, I have to use the uglier
        MessageWindow instead of MessageDialog
  - bsnes: added (non-functional) link to <https://doc.byuu.org/bsnes/>
    to the help menu
  - bsnes: added GUI setting to toggle memory auto-save feature
  - bsnes: added GUI setting to toggle capturing a backup save state
    when closing the emulator
  - bsnes: made auto-saving states on exit an option
  - bsnes: added an option to auto-load the auto-saved state on load
      - basically, the two combined implements auto-resume
  - bsnes: when firmware is missing, offer to take the user to the
    online help documentation
  - bsnes: added fast PPU option to disable the sprite limit
      - increase from 32 items/line + 34 tiles/line to 128 items/line +
        128 tiles/line
      - technically, 1024 tiles/line are possible with 128 sprites at
        64-width
      - but this is just a waste of cache locality and worst-case
        performance; it'll never happen

Errata:

  - hiro/Windows: fallthrough on Canvas `WM_ERASEBKGND` to prevent
    startup flicker

hiro/core/core.hpp

@@ -374,6 +374,7 @@ struct Application {
 
   static auto doMain() -> void;
   static auto font() -> Font;
+  static auto modal() -> bool;
   static auto name() -> string;
   static auto onMain(const function<void ()>& callback = {}) -> void;
   static auto run() -> void;
@@ -408,6 +409,7 @@ struct Application {
 //private:
   struct State {
     Font font;
+    int modal = 0;
     string name;
     function<void ()> onMain;
     bool quit = false;