FlightGear - Flight Simulator FGAddon

DA40NG: Restructure, add source files, add basic passenger over multiplay

PA28: Correct mistake in FCS

Add some 'eye-fixed' tags to a few aircraft to fix 'Drop view' with the current view system.

(Patch from Julian Smith.)

De Havilland DHC 1 'Chipmunk' : Some modifications on the instruments and flaps. Thanks to HerbertP

branching for release 2020.3

CRJ700-family - major update from Henning STAHLKE

Dragonfly:
FDM:
- Adjust some derivatives (Improved side slip)
- Adjust thruster and engine location (was too far aft)
FCS:
- switch sign of aileron control to be more consistent (Right flap down is positiv)
Set-File:
- Set Status
Banner:
- Remove workaround
GUI:
- Make sliders live in weight_and_balance

Harrier-GR3: added crude dialogue to control instrument lighting.

[Should have done this as part of the earlier change to make instrument
lighting vary.]

an24b: Mostly cleanup and checks against the new release; prop-lock switch; removing obsolete files from Anti-Ice

Dassault Mirage 2000-5 big update

- New canvas HUD
- Fixed to cockpit displays
- Improvements to cockpit model.
- New aerodynamic model
- Much improved FCS and AFCS
- Better documentation
- Improved aircraft systems simulations: hydraulics, electrics, ECS, fuel.
- New dialogs for config.xml\