- Added global position drefs for multiplayer aircraft.
- Added checks for the "don't change" sentinel value to SetPosition, SetOrientation and SetFlaps.
- Reordered validation checks in SetGear to be consistent with the above methods.
- Removed some now redundant "don't change" value checks in the MessageHandlers class.
- The Get method no longer assumes unknown drefs are floats.
- The Get method now properly accounts for the fact that the dref data type is a bitflag.
- Binary drefs are now properly read and packed into `values`.
- This is a rather inefficient process, as it quadruples the number of bytes we have to send out. Should look into better ways to do this in the future.
- The Set method now handles data types correctly.
- The Set method now supports binary datarefs.
- Improved logging of edge cases.
- Added a check to warn about setting read-only datarefs if verbose logging is enabled.
