linux.input-events: Add support for /dev/input/event* devices.

linux.input-events: Add support for /dev/input/event* devices.

Pretty complete but needs integration into the game.input framework
and some examples of force feedback.

! To read a mouse:
get-input-events-mice first second <linux-controller> read-controller-loop

! To read a keyboard:
get-input-events-keyboards first second <linux-controller> read-controller-loop

! Show all devices
all-controller-stats ...

! linux util to do similar stuff
evtest /dev/input/event256