Tweak motel location string
UI: add Omega.Conversion helper module, rgb/hex converters
Remove unused lib/motel/errors module
UI: few comment updates
UI: enable double buffering for smoother/optimized perf
UI: conditionalize default camera pos based on type of scene root

Also a few tweaks including increased max cam distance and not
setting skybox in galaxy scene for better effect

Specs need to be updated to reflect changes
UI: tweak galaxy gfx, remove center, use static particle system

Tests need to be updated to reflect latest functionality
Split motel registry into mixins, mv motel/mixins/* to loc subdir

No functional changes.
Run omega registry events w/ cloned entities / not protected ones

Contains a few style / code cleanups in addition to this
Refactor movement loop, eliminate duplicate registry lookups

Cleans up & optmizes code which should result in a more efficient/
tighter movement cycle

No major functional changes other than refactoring, though
suspect some specs are broken / should be updated to test new
layout
Do not rotate passed stop_angle if set in rotatable ms mixin
Set stop_angle / stop_distance when moving manu entities

Tightens up manu entity movement / rotation & removes need for
additional location update upon target angle/distance being
reached

Specs need to be updated to incorporate changes
Add some TODO comments + other comment updates
UI: modify ship trail gfx, add another tech demo/scene
UI: remove canvas padding