Refactor to use Bevy #5
Description
Nannou is currently being reworked to be a plugin for Bevy (see nannou-org/nannou#953). One of the reasons is that it takes notable effort for the maintainers to stay up to date with wgpu and other dependencies. Moving to Bevy alleviates this while unlocking new potential.
Visor is currently using a fork of Nannou that upgrades wgpu for dependency compatibility. It would make sense for Visor to follow Nannou's move to adopt Bevy and resolve the above. Bevy would also mean support for 3D rendering, materials, and more.