Checkpoint - moving things out of the NuttX configs/*/src directories

apps/ardrone_interface/ardrone_interface.c

apps/ardrone_interface/ardrone_motor_control.c

apps/attitude_estimator_ekf/attitude_estimator_ekf_main.c

apps/commander/commander.c

apps/commander/state_machine_helper.c

apps/drivers/bma180/bma180.cpp

apps/drivers/boards/px4fmu/Makefile

apps/drivers/boards/px4fmu/drv_hrt.c

apps/drivers/boards/px4fmu/px4fmu_init.c

apps/drivers/boards/px4fmu/px4fmu_internal.h

apps/drivers/drv_hrt.h

apps/drivers/hmc5883/hmc5883.cpp

apps/drivers/l3gd20/l3gd20.cpp

apps/drivers/mpu6000/mpu6000.cpp

apps/drivers/ms5611/ms5611.cpp

apps/drivers/stm32/tone_alarm/tone_alarm.cpp

apps/fixedwing_control/fixedwing_control.c

apps/gps/mtk.c

apps/gps/nmea_helper.c

apps/gps/ubx.c