Input device protocol enhancements.

Added support for Linux multitouch protocol B (slots).

Added support for using the device's input properties as a hint
to determine the intended usage of a touch device.

Added support for the ABS_MT_DISTANCE axis.

Fixed a bug reporting the presence of the orientation axis.

Change-Id: Icf7b5a5a0f1a9cdf6ad2b35be8ea0c1a35815d48