206a5b4 Pass new item and entity names as translatable This removes the itemnames and entitynames sections from mapping data and instead allows for easier changes via resource packs.

For 1.20.5+ clients, entities use the vb.entity.<type> translate key; items use vg.item.<type>. The old-style string (e.g. "26.2 Sulfur" is added into the fallback field).

For clients below 1.20.5, the old style string is put directly into the translate field.