This makes the Teleport action functional now, although it looks pretty
rough as it warps you instantly instead of waiting for the action to
actually finish.
This begins figuring out how we are going to be propagating actor
control state: e.g. targets, poses, and other misc effects. I ended up
sending client triggers to the global server state, who then creates the
needed actor control packet for the other players.
Now players can see what other players are targeting!
