Components separated, interactive object method overhauled, and networked Objects

[PlumCantaloupe]

In this PR several changes were made:

Enhancements

• The "explore" page not autogenerates a list of world links, by looking inside the worlds folder
• Magic links now create a link for the creator and allow you to define an arbitrary group name
• Object interaction now uses parenting rather than the parent-constraint component for a smoother experience
• The circles-artefact component now has been simplified

New components

• circles-description component (same as used for circles-artefact
• circles-pickup-object (similar to circles-artefact but can now be applied to any object with the artefact's additional features)
• circles-pickup-networked [experimental] allows circles-pickup-objects to be networked and shared between multiple users (removes duplicates objects)
• circles-lookat allows an object to constantly turn to face another element i.e., the camera (includes a smoothing option)

Some bug fixes:

• Fixed some URLS not being allowed in script headers for world
• Updated raycasters on circles-interactve-visible so that interactions turn off/on properly
• Adjusted [circles-material-extend-fresnel to also work on basic geometry and materials
• circles-artefact label and description now append to the circles-artefact's parent, rather than the scene.

Other Changes

• Renamed the "hub" world to "Campfire" to be more clear
• renamed circles-object-label to circles-label
• Added a new "Network_Testing" world to try out synchronized object interactivity
• Removed circles-inspect-object (now replaced by circles-pickup-obejct)
• Adjusted shadows to be smoother. This needs work
• Added some CIRCLES.UTILS options i.e., CIRCLES.UTILS.generateRandomString(numWords)