Haptics #devtober

Bugs fixed, mostly... but this #devtober update, I'm adding haptic feedback to the game. This is a new feature as the game didn't utilise haptic feedback before; mobile devices are capable of rumble, but it didn't work well.

However, VR controllers (and others!) can provide haptic feedback to the player. So a button press, a laser firing, drone exploding or just crashing into a tree should all rumble a bit. The code is abstract and listens to events to provide rumble as desired.

Next, a VR release?