Create raycaster with radius

[thecodewarrior]

Create a class that will do raycasts on AABBs, registering any hits within a certain radius of the ray (think a raycast with a cylinder).

Here's some code I found for doing AABB-ray distance checks:

• https://www.geometrictools.com/Source/Distance3D.html#LinearVolumetric
• https://www.geometrictools.com/GTE/Mathematics/DistLine3AlignedBox3.h