feat: flexible engines mounting

[crocket63]

Fixes #[issue_no]

Summary of Changes

This PR adds a physical model for engine mounts, so that engines will wobble when plane is experiencing sudden accelerations.

Screenshots (if necessary)

References

https://youtu.be/O-qnWaqDwxg?t=257

Additional context

Discord username (if different from GitHub):

Testing instructions

No tests expected for now, this will be tested ingame on A380 plane

How to download the PR for QA

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2. Click on the Checks tab on the PR
3. On the left side, click on the bottom PR tab
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[Gurgel100]

Even though I don't quite understand what is happening it looks good ;)

[Gurgel100]

Just out of interest, are you considering to consider engine vibration later as well?

[Gurgel100]

LGTM

[crocket63]

Just out of interest, are you considering to consider engine vibration later as well?

Not sure it would be relevant, would probably be higher frequencies with less amplitude, so more energy but not visible as the structural wobble. I can be wrong though :p

[Gurgel100]

Not sure it would be relevant, would probably be higher frequencies with less amplitude, so more energy but not visible as the structural wobble. I can be wrong though :p

Well at least in case of a fatal engine failure the vibration certainly make the engine wobble :D

[crocket63]

Oh yeah when it explodes yes lol. I bet we'll have to figure out something function of speed then to excite the animation :)