Update to 1.12

[JDLogic]

I purposely made this into two commits so that a 1.11 branch could be split off, if wanted. The changes for 1.12 where very minor compared to 1.11.

1.11 changes:

• switched Waila support to Hwyla (Waila has not been updated in a long time)
• added support for TheOneProbe
• moved all fluid handling to capabilities (FluidContainerRegistry was removed)
• renamed jumping methods for Easter cow to mcp names
• renamed lang files to conform to latest resource pack format
• various changes due to changes with itemstacks

[RoBrit]

I'll have to properly review it in the next couple of days, but from what I've seen so far... Very good work, appreciate the time & effort you put in. Thank you.

[RoBrit]

Merged into two separate branches with a minor tweak to fix textures of 'event' cows. Thanks for the hard work on this. Super appreciated.