[Enhancement] Support for block data

It would be amazing to have support for blockstate data in config.yml

Be able to specify which direcion a block is facing when generated, whether it is waterlogged or not etc. This could be used to manually add support for any custom blocks without the need for hooks.

Example possible syntax. this would give a 50% chance of cobblestone and 50% chance of brown mushroom on all 6 sides.

config.yml:

generators: customblocks:

label: "My Custom Block"
permission: []
unlock_islandLevel: 0
blocks:
- BROWN_MUSHROOM_BLOCK[west=true,east=true,north=true,south=true,up=true,down=true]:50.0
- COBBLESTONE:50.0

#32 [Enhancement] Support for block data