Silent Gear 4.0.0

NeoForge 1.21.1 (and 1.21) port! Lots of internal changes: expect bugs!

Wielder effect traits requiring a full suit of armor (e.g. Flame Ward) do not work
Lots of balancing needs to be done, especially with the new synergy calculations

Legacy mixing. A new mixer block will be added later to replace this feature.
Materials and gear items no longer have a "tier" property. Repairs can currently be done only with an identical material, but I'm working on some options to allow more flexibility.

Stats have been replaced with "properties." Properties can store just about any type of value, not just numbers.
- Most are still simple number properties
- harvest_tier is a unique object now
- Traits are now stored in a traits list property
Traits now contain a list of "effects" which determine what the trait actually does. This allows one trait to have multiple functions.
Synergy calculations have been changed. Material categories now have the biggest impact, with rarity having a small impact. Expect further tweaking/changes.
Compound materials are officially called "alloys" now.
Material JSON format has changed substantially. Old data packs are NOT compatible.
Lots of code refactoring/renaming, with more to come

Silent Gear