Input event and device enums (#17514)

* Switch deviceID from int to enum InputDeviceID, globally

* Switch axisId to enum InputAxis

* Change int keycodes to InputKeyCode where it makes sense.

* SDL input buildfix

* SDL keycode buildfix

* Switch on enum warning fixes

* Qt keycode buildfix

* iOS keycode buildfix

* UWP keycode buildfix

* More iOS buildfix

* More iOS buildfix

* Update DinputDevice.cpp

Common/UI/ScrollView.cpp

@@ -112,6 +112,8 @@ bool ScrollView::Key(const KeyInput &input) {
 	case DEVICE_ID_XR_CONTROLLER_RIGHT:
 		scrollSpeed = 50;
 		break;
+	default:
+		break;
 	}
 
 	if (input.flags & KEY_DOWN) {
@@ -127,6 +129,8 @@ bool ScrollView::Key(const KeyInput &input) {
 		case NKCODE_EXT_MOUSEWHEEL_DOWN:
 			ScrollRelative(scrollSpeed);
 			break;
+		default:
+			break;
 		}
 	}
 	return ViewGroup::Key(input);