popn: native touch option, keypad warning (#640)

#639 

the usual

src/spice2x/launcher/options.cpp

@@ -1008,6 +1008,18 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         .category = "Monitor",
         .picker = OptionPickerType::Monitor,
     },
+    {
+        // PopnNativeTouch
+        .title = "Pop'n Music PikaPika Native Touch Handling",
+        .name = "popnnativetouch",
+        .desc = "Disables touch hooks and lets the game access a touch screen directly. "
+                "Requires a touch screen to be connected as a secondary monitor. "
+                "Touch input must be routed to the primary screen via Windows Tablet PC settings. "
+                "Enable this when you get duplicate touch inputs from an actual touch screen.",
+        .type = OptionType::Bool,
+        .game_name = "Pop'n Music",
+        .category = "Game Options (Advanced)",
+    },
     {
         .title = "Force Load HELLO! Pop'n Music Module",
         .name = "hpm",