allow changing color and scale via mouse when holding alt or shift keys; fixing/changing input for rift.

fixed faceculling order on geometry for lines and caps, both even and odd segments. Added timed delete per line. Fixed networking bug where line data could be sent before remote clients were fully initialized. Adding drawing manager that prevents multiple pens from drawing on the same drawing at the same time.

This isn't relevant now given the cleaned-up client deploy process.

Added activatable component, which allows a button to cause secondary activations to occur while an object is grabbed. Also made the pen "sticky" so it stays attached to your hand when you grab it. It can then only be dropped by using the "primary" grab button (e.g. grip buttons). The triggers now are "secondary_action" buttons, which work like normal except in the case that you are holding a sticky object, in which case they will not cause the object to be dropped.

resolution and gets loading indicators

If we know ahead of time which entities will have components on
them or a template attached to them, then we can identify scene
graph subtrees which can act as leaves of the entity tree and
refrain from inflating extra entities underneath them.