Create a sound for when the balloon attaches to the sweater

[jbphet]

The parent issue for this is #479.

We need a sound for the moment when the balloon was drifting due to static charge and stops on the sweater. The magnitude of this sound, meaning the duration and/or the volume, should be larger when the balloon has traveled more and smaller for shorter distances.

@Ashton-Morris will create a base sound for this and then @jbphet will integrate it into the sim with the behavior described above.

[Ashton-Morris]

I have added a file for this

• balloon-hit-sweater.mp3

[jbphet]

This sound is now integrated and we can review at the next sound design meeting.

[jbphet]

Reviewed in the sound design meeting and approved. Closing.