Tapered Capsule/Cylinder Physics Shapes

[bjornbytes]

Jolt supports tapered capsules and tapered cylinders. We could support this by supporting 2 different radii for CapsuleShape and CylinderShape.

Need to figure out the exact API for the constructors.

[bjornbytes]

Currently it would not be possible to draw these shapes with Pass:cylinder and Pass:capsule (could use :cone for cylinders where one of the radii is zero).