saves the forceloaded blocks periodically.
checks every 10 seconds if the forceloaded blocks got changed in-game
and persists them on-disk if that's the case
This unifies the settings APIs.
This also unifies the sync and async registration APIs, since the async
registration API did not support adding non-functions to the API table.
rubenwardy
Thomas Rudin
ShadowNinja
raymoo
Tim
Nathanaël Courant