[intermcu] intermcu over CAN link from lisa to lisa
[intermcu_can] main_fbw calling
[link_mcu_can] Call from main
[intermcu] common link_mcu.h header
[gcs] select an aircraft directly with a click on the map
[intermcu] style fix
Merge pull request #841 from paparazzi/link_mcu_can

intermcu link via CAN
[FBW] Compile less overhead in FBW
[FBW] no need for i2c when there is no i2c
[modules] add missing default case in cam
[generators] gen_airframe: don't force float if unit = code_unit
[conf] update CDW airframe with chimu/cam
possibility to pass ref to paparazzi_version
[fixedwing] Option to have telemetry through the FBW

- for outback safety (so it can decode flight termination modes even when AP is down)
- Keep datalink while in flight termination mode

closes #844
[baro_board] make configure work for BARO_PERIODIC_FREQUENCY (needed to use define before)
[tmtc] ivy2nmea doesn't need gps lib, remove it on clean
[sys_time] maximum of 16 sys_time timers by default (was 8)

actually makes the baro periodic timer (for BARO_BOARD) usable by default on fixedwings
[baro_board] ms5611, error if BARO_PERIODIC_FREQ is over 100