Adding BambiBucket; Long-Line and Winch Support

[HHS81]

With the recent flexhose code from wlbraggs AirCrane we have the ability to simulate realistic BambiBuckets-, Long-Lines- and Winch-actions.

See BambiBucket-branch:

There are still some issues to sort out:
-some nasty lags
-hitsground-animation
-BambiBucket needs to be simulatet filling up with water (weight!)
-wind interaction (only interaction with helicopters own speed yet)
....

[SebDieBln]

Amazing stuff! I will take a look at it soon.

[HHS81]

And added a 90m winch, modeled after the real one.
Press D-key for deploying the winch
m/M-key to lift and let down the hook

[HHS81]

100ft Longline added, but hitsground-animation issue must be fixed

[HHS81]

have to check which changes @wlbragg made. I`m thinking of making at least the BambiBucket as additional Addon, so other helicopters can use it as well I hope.