Updated RNH lwipopts with additional netbuffs

Apparently one netbuf is needed per socket. There's a bunch of
options in here that need to be examined.

Also deleted trailing whitespace because vim
Fixed RCI long action times

Select is terrible. Also includes changes from a review by Jamey.
Moved gps to flight-gps
Barebones flight-gps implementation
Turned on chconf debugging, disabled unneeded HAL drivers
Added version macro to gps, imu, servo