ID compatibility corrections.

Properly integrating the new mods into the ID registry. Also, this fixes new block/item IDs now required in existing mods (i.e. Thaumic Tinkerer).

NB: MFFS 2 Classic and MFFS 3 are supposedly meant to work with each other, so IDs that clash between the two have been cleaned up in this fix.
MMFS 3 support takes priority because it's the superior version at this stage.

Previous testing disabled MFFS 2 so this should have minimal impact on existing worlds.