Cube which can be rotated in 3D

I've seen your videos about of matrices and I think that it's a great idea for coding challenge: create simple 3D object like cuboid in canvas which can be rorated using keyboard or buttons.

Start from the canvas-based 3D cuboid described in the issue and review the matrix material referenced there. Define how keyboard and button controls should rotate the object, then verify that the cuboid renders correctly and responds to both input methods.

Written by the indexing model from the issue text.