Implement Map-optimisation and fix some MapStorage bugs.

[tyhdefu]

Implement the map-optimisation config. Also stagger packet sending to prevent https://github.com/SpongePowered/Sponge/issues/3373 in api-8. Also add the optimisation configs to the mixin configs to be loaded, so that optimisations can be loaded. (This causes a few errors on startup due to some optimisations not being configured correctly yet. Also fix a bug where MapInfo's would add themselves to the map storage before setting their uuid, meaning the hashmap was wrong.