Now that multiple filesystem partitions are supported,
the UAVO manager needs to be specific about which partition
to load/save its objects to.
Conflicts:
flight/targets/CopterControl/System/pios_board.c
flight/targets/DiscoveryF4/System/pios_board.c
flight/targets/FlyingF3/System/pios_board.c
flight/targets/FlyingF4/System/pios_board.c
flight/targets/Freedom/System/pios_board.c
flight/targets/Quanton/System/pios_board.c
flight/targets/RevoMini/System/pios_board.c
flight/targets/Revolution/System/pios_board.c
flight/uavobjects/uavobjectmanager.c