Happy ghast implication

BUR #39280 has been approved by @nonamethanks.

create implication happy_ghast -> ghast

New passive version of ghasts

BUR #39282 has been rejected.

create alias happy_ghast -> ghastling

https://minecraft.wiki/w/Ghastling

The bulk update request #39282 (forum #344489) has been rejected by @Trouble_Windows.

Woops, turns out they're not 1:1, ignore me. Ghastlings turn into happy ghasts.

The tags for dried ghast, ghastling, and happy ghast should all imply ghast

The bulk update request #39280 (forum #344484) has been approved by @nonamethanks.