In doing so accelerometer sensor and trim code had to be cleaned.
Added a new method to buzzer.c to avoid exposing toggleBeep.
Renamed current_profile to current_profile_index to avoid confusion.
Moved some GPS code from mw.c into gps_common.c.
Moved pid values into a pidProfile_t structure; this was done so that
gps_common.c does not have a dependency on config_profile.h.
pidProfile_t lives in flight_common.h now.
Moved gps profile settings from profile_t into gpsProfile_t for the same
reason.
Removed gps_common.c's dependency on masterConfig_t by passing needed
variables into gpsInit().