first round of servo control stuff
getting all the directories
Make servo_control source compile
switching to desktop
remove backup files from vim and modify gitignore
Decoding values from packet but issues setting pwm from those values
Merge branch 'servo_control' of github.com:psas/stm32 into servo_control
PWM changes for servo_control firmware.

PWM now is standardized on 'ticks'.
New function pwm_us_to_ticks will convert from microsecs
  to ticks.

Added new thread for testing pwm. This thread can be deleted
later.
Cleaning up data_udp. Using RC addresses
Moved udp_packet_sender to host_fc and added Makefile
Updates to udp_packet sender test. Using FCF packet structure
Progress checkin. udp packets both ways now. and ping from RC board.
first test FC->pwm setting PW to iended value (oscilloscope based, no servo)