untagged-9b73ae69bd93b3e562ba: Removed dungeons from RAM

- Made Schematics load into RAM as byte arrays at the start of game instead of as NBT (saves +- 1GB of RAM) (SH)
- Added checks for non-default schematics to make sure they contain valid NBT at game start (SH)
- Made sure that invalid templates/schematics aren't even added to the array (SH)
- Made sure that PocketTemplate loads Schematic from byte array before it tries to place it (PT)
- Made sure that PocketTemplate unloads Schematic after placinf it (PT)
- Made sure that TileEntityRift doesn't check its Location while PocketTemplate is replacing placeholders in Schematics (otherwise it will try to use null worlds and shizzle) (TER and PT)
- Added functionality when saving a Schematic, this should put the Schematic in memory as a byte array (SH)

- Fixed little bug, where Schematics that would be too big, would only be loaded when configured not to (SH)

- Added functionality to keep the Schematics that are placed most loaded in RAM as NBT (combination of usageList and usageMap) (SH and PT)
- Added config option to set the maximum number of Schematics that will be cached as NBT (MC and SH)

- Made sure that Dimdoors.log is consistently used (SH)

- Added check for .json file extension for files in the json config folder (SH)

- Schematic files in the jar have had the .schem extension for a while now. Generalised a bit. (SH)