0.3.2

Heisenberg complete.

Heisenberg is complete, but it’s really gimmicky for right now: it has
a child object attached with an “ExplosionController” and a rigid body
attached to the parent via a Distance Joint, so the collective movement
is a little bit shaky. You can take a look at it in scene view. For now
it works, and ExplosionController can be used in the future.

- Added Heisenberg Explosion Prefab
- Added ExplosionController.cs
- Added HeisenbergProjectile.cs
- Abstracted collision resolution and destruction of Projectiles in
Projectile.cs