Use unique touch mouse class for iOS and Android.
Enable touch mouse for arcade lightgun games or when maple device A is a
lg. Disable it otherwise.
android: only display controllers that actually send events, including
system mouse and keyboard. Use separate Touch Mouse and System Mouse.
iOS: fix missing button input for touch mouse. Don't bubble up touch
events that hit vgampad buttons or controls.
Get rid of swipe gesture (fixes touch not being delivered)
Use UP+DOWN or LEFT+RIGHT to open menu.
Arcade shortcuts (RT + A/B/X)
Disable system gestures
Monitor network and restart AltKit as needed.