try using Yjs instead of automerge

[michaelpalumbo]

problem: automerge 2.0 uses web assembly, and is not playing nicely with the webxr stuff (see discussion in #216)

Yjs is another CRDT with a larger community than automerge. Plus is has its own websocket and webrtc implementations and indexedDB

• figure out how to set js Objs to yjs instance
• replace automerge code with yjs in Patch.js

came across a snag. unsure how to update dynamic properties using Yjs. this is necessary for using Yjs with some of the methods in Patch.js: patch.add(), patch.remove(), patch.update(). see this issue I posted for (hopefully some answer)

• update: see message below, will next try SyncedStore in place of yjs

[michaelpalumbo]

update: Yjs might be too low level for mischmasch's needs. the main issue i've come across is needing to create separate map.set() operations for each nested object of the mischmasch scene, which seems clunky... I've come across https://syncedstore.org/docs/ which is built on yjs and simplifies its use (while leaving direct yjs operations available if we want to use any).