Update block enum for 1.8

[Kupferhirn]

No description provided.

[Kupferhirn]

not ready to merge

[rom1504]

Ok I just tested digging without and with the new enum for prismarine.
It doesn't work without, and it works with the new enum.

What's the problem ?

[Kupferhirn]

tested and ready to merge

[rom1504]

Ok, merging.
(I think some automatic thing #229 would be more reliable but until it's done doing it manually works)