Merge pull request #26 from Tectu/master

Merge Tectu Changes
Add GINPUT Dial, simplify GWIN input assignment

Added GINPUT Dial support and a driver that uses GADC to read the dial.
Added support for Dial inputs to the GWIN slider.
Updated the slider demo for Dial Inputs.
Simplified the assigning of inputs to GWIN "widgets" button and slider.
Updated the demo's to match the new input to button assignment.
Move doxygen to the include file for Mouse LLD
Merge pull request #63 from inmarket/master

GINPUT Dial. Simplify input -> GWIN widget assignment