Create Alternate Static Source knob and static system

[gilbertohasnofb]

Create Alternate Static Source knob and static system. This will involve:

• creating the 3D knob on the right side of the panel lightning knob (see: https://github.com/Juanvvc/c172p-detailed/issues/728 )
• rework the panel textures around the position where the ALT STATIC AIR knob will go, since there are some labels on that place
• implement the static system (which will help with https://github.com/Juanvvc/c172p-detailed/issues/538 )

[onox]

Edit: it can't, apparently. Any suggestions as to how to do it?

This is a long-standing problem. IIRC some jsbsim suggested that you can write to the input and the output properties of the integrator component [that does something with the cabin heat property] at the same time. I think I've tried that once and couldn't get it to work. Also, you need to write after the weather system has initialized.

So currently we just set it to 0 because a user can spawn anywhere on the planet where the temperature will be between -30 and +30. 0 is a compromise and after a couple of minutes the cabin heat temperature will have adapted to the environment temperature.

[legoboyvdlp]

This is waiting for James to fix the vertical speed indicator which does not work with any non-standard static source.

[legoboyvdlp]

And that issue is now fixed so I can restart work on this.

[gilbertohasnofb]

Does this involve any 3D modelling or is it just a system implementation? If it involves 3D modelling then I would suggest to first wait for the mesh cleaning to be over, since blend files do not play fair with git.

[legoboyvdlp]

Just system - the model and all are there already, it just presently does nothing!

[gilbertohasnofb]

Great!