(based on FSX testing)
* Only send changed situation to SIM
* Split sending of parts / situations
* Only send parts with a reduced frequency (means slower as positions)
* Mark geodetic height as null for default values (the value is usually unavailable)
* Fixed altitude to MSL for network data
* Trace which aircrafts support aircraft parts via network
* Renamed insert_fron push_front (as proposed by Roland)
Status quo / lessons learnt
* On slower PCs jitter is still noticed for interpolated aircraft.
* Running interpolation in an independent process (aka core, not in GUI) reduced load dependencies
=> it seems to make sense to run driver in own thread
* The onGround flag in parts seems clumsy as it required to retrieve parts for position updates
* In interpolation performance really matters
* added SB client area support
* renamed member functions to better reflect meaning
* added all structures required for SB client area
* changed to new logging
* Allow to display text alerts for
** Status messages
** Private chat messages
* Updates from GUI cockpit to Simulator
* A bit refactoring, e.g. event names according our standards
* Data definitions for FSX events
* BCD conversion for COM and transponder
* Update Cockpit method in context
* Renamed setOwnAircraft -> updateOwnAircraftFromSim
