Copper Pot 1.20.1-2.0.0

Again, huge thanks to OnesAndZer0s for spearheading porting efforts!

Copper pot recipes can now give experience.
Added tentative recipe support for Collector's Reap and Fruit's Delight
Seasonal agar extensible mob effects are now determined via a tag instead of in an incredibly cursed config String[].
Some items are currently inaccessible in the creative menu/JEI (spiced apple jam, pork sandwiches, mooncakes, guardian souffles)
- Giving them some time on the backburner while the future of the mod's foods (which are currently incredibly niche) are determined. It will take some time, as a lot has changed since 1.16.5.
- Other items (tropical meringues, sourdough, creeping yogurt) are currently inaccessible only because their dependent mods have not updated (such as Atmospheric and Savage and Ravage). When those mods are updated, the items should become available.