This approach will allow us to install directly through package control
by just specifying the repo!
Former-commit-id: 3df245186298042dfd4d8e0bf65844a283a571dd
TLDR: updated bindings, "virtual" classes now do less, and only deal with
managing the persistence of the codemp object within the editor.
the actual commands do the interaction with codemp.
moved away from asyncio, now its callbacks spawned on the async sublime thread.
the client now is much more central and knows everything.
split the join command into join workspace and join buffer, as it was before.
simpler and better ux.
Former-commit-id: 71c96d321fef2620da4301a8f7af5dff138921cd
