Add Endstone structures to the End

[thor12022]

With CoFHCore world gen, add some Endstone structures to the End.

• [x] Massive Veins
• [x] Clouds
• [x] Geodes
• [ ] Giant Spikes

Any ores that generate after these need to be included as a weighted block

[thor12022]

Forget the spikes for now. Ore Generation seems to work