This mechanism automatically queues data into the correct thread where necessary, otherwise the method is invoked directly with low overhead.

At the same time remove the UDP socket event workaround. It is not a problem.

This way we don't need macro-magic to deal with
different operating systems and compilers.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>

Plus other auto connect bug fixes

I removed some needed headers from a top level file which then causes a
ripple effect downstream

Removed incorrect Vehicle.altitudeWGS84

Plumb through initial object mode on Vehicle

Also additional major Mission usability changes

- Also fix vehicle selector dropdown in toolbar