Add floats option

[hbeni]

There are C182's outside in the world with floats, so we should have them too!
(Probably most of this can be borrowed from the c172 project)

• Add model + texture
• [ ] Add option to switch to floats in aircraft menu cancelled due to "separate variant" decision
• Add FDM ground reactions for floats
• Add drag effects
• Add water splash effects and sound
• Mooring option in aircraft securing dialog

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References:

• https://wiki.flightgear.org/Howto:Modelling_hydrodynamics_in_JSBSim

[HHS81]

But then please as seperate -set.xml. It was wish by the core developers (Espcially Stuart Buchanan) some time ago, that such heavy modifications needs a seperate set.xml. I also think it is easier to maintain

[hbeni]

Can we inherit from the default c182s-set.xml, so just the floats stuff needs to be added? (EDIT: Yes)
I would define it as variant, so it is not showing as new plane.

And I think that this separation also will help with framerates :) 👍

Drawback is that we can't switch in flight then.

[hbeni]

I currently hacked up experimental code, mostly C&P from the C172.
So far floating on water seems to work, but alot tedious optical things still need to be done:

• Alot of model related things like hiding default gear and textures on the floats
• Fixing the Gear lever in the cockpit to be able to retract the gear
• Enable the rudder up/down (model wise and technically) and the connected effects
• Enable this for multiplayer too

I will push shortly. Currently I'm out of luck and nerves :)
Maybe someone more capable than me can pick this up as a starter.