yuzu: Enable to use controller to close a game

- Add General setting to choose if a confirm dialog is shown when stopping
- Show the right confirm dialog if wanted
  - Reuse dialog window that ask to close the game
- Add "L + Plus + Minus" default shortcut to Stop emulation
- Create generic question dialog based on TAS dialog
  - It allows controller interaction on most dialogs

src/yuzu/uisettings.h

@@ -56,6 +56,8 @@ enum class Theme {
     MidnightBlueColorful,
 };
 
+enum AskStopIndex : int { Always, Game, Never };
+
 using Themes = std::array<std::pair<const char*, const char*>, 6>;
 extern const Themes themes;
 
@@ -94,6 +96,9 @@ struct Values {
     Setting<bool> confirm_before_closing{
         linkage, true, "confirmClose", Category::UiGeneral, Settings::Specialization::Default,
         true,    true};
+    Setting<bool> confirm_before_stopping{
+        linkage, true, "confirmStop", Category::UiGeneral, Settings::Specialization::Default,
+        true,    true};
     Setting<bool> first_start{linkage, true, "firstStart", Category::Ui};
     Setting<bool> pause_when_in_background{linkage,
                                            false,