Update submodule ChibiOS
flight-imu started
Continue to build flight-imu application
Added mpl thread
Reorganize the configuration files for flight-imu
Taking apart sdlog thread.
Note update
Added all sensors to sdclogging thread. Compiles
Continue to build flight-imu
Chibios pull
Factored out mpu sensor in flight-imu.
Removed some dead project directories.
MPL and MPU sensor interrupts running simultaneously.
MPU and MPL downsample rates added to sdclog thread
Wrappers around f_write and f_read
More work on seek eod marker
off by two bytes bugfix
find eod testing
Debugging seek eod.
Testing sdc_seek_eod function
Added sdchalt command and events to support card shutdown and startup.