Limit how many objects each player can place (protocol 43)
- Servers and lobby hosts set how many objects each player may have
placed: object_limit in ReSkateServer.json and the "objects" command,
"Objects per player" in the host options. Default 100; 0 is no limit
- The host and a server's admins are not limited
- At the limit a player's game refuses another object, from the native
object tool and the park editor, and the menu shows how many they have
placed
- Enforced by the host or server, which shows everyone no more than the
limit of each player's layout; objects already shown keep their place
- The limit travels in the roster, which takes the protocol to version
43: builds before this cannot join sessions with builds after it
- The protocol tests link again (the server browser needs the identity
lists since the official servers change)