D-hat switches now functional in QGC

Hi All,

It looks like Rusty has a winner as far as the merging of PR #3511 goes. There are now 13 buttons instead of 10 and QGC is now recognizing the d-hat switches. However QGC is still not recognizing the X/Logitech switch.

d-hat switch functionality is only available in the QGC daily build and not the stable build.