Add support for primitives

Primitives would include all of ThreeJS's geometries (plane, box, sphere, etc.) with an adjustable material (standard and basic) including the ability to set custom textures.

Start by locating how Spoke currently creates scene objects and represents Three.js geometries, materials, and textures. Scope support for plane, box, sphere, and other primitives with adjustable standard or basic materials and custom textures. Done means these primitives can be created and configured in the project.

Written by the indexing model from the issue text.