Re-organizes the servers TileEntity Tick List to be bucketed by type.
This allows the server to skip buckets of Tile Entities that is known to
not have any tick function (half of them), skipping time spent iterating
them and checking if they are valid and in a loaded chunk. In other words,
a lot of "meta" time wasted on tile entities that would never do anything anyways.
This change also adds control into the interval of every TileEntity, giving
the server owner control on how fast a TileEntity ticks, slowing it down if they must
(Such as chest), to improve performance.
Aikar