Add pixel to voxel projection processor

[m-riley04]

This processor maps 2D pixels from multiple video sources into a 3D voxel grid to detect objects with low noise-to-signal ratios.

Can be extremely useful in determining whether something is far away (in the sky) or if it is closer than it appears (bugs, leaves, etc.)

Helpful sources:

• https://github.com/ConsistentlyInconsistentYT/Pixeltovoxelprojector
• https://www.youtube.com/watch?v=m-b51C82-UE