jb: touch debounce (#798)

## Link to GitHub Issue or related Pull Request, if one exists
n/a

## Description of change
Debouce option for touch input. Applies to all touch handlers (rawinput,
win8, win7) since it sits at the touch layer, and then consumed by jb
touch logic.

## Testing

src/spice2x/launcher/options.cpp

@@ -2725,6 +2725,20 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         },
         .quick_setting_category = "Game",
     },
+    {
+        // JubeatTouchDebounce
+        .title = "JB Touch Debounce",
+        .name = "jubeattouchdebounce",
+        .desc = "For touch screen players: ignore extremely quick touches by requiring a "
+            "touch to be held for at least this many milliseconds before it registers.\n\n"
+            "Useful for filtering phantom touches on a noisy touch screen. A higher value "
+            "adds input latency, so keep it small. Default: off (0).",
+        .type = OptionType::Integer,
+        .setting_name = "8",
+        .game_name = "Jubeat",
+        .category = "Game Options",
+        .quick_setting_category = "Game",
+    },
     {
         // spice2x_RBTouchScale
         .title = "RB Touch Emulation Scale",