Move commonly used API systems to a plugin based system

Create a class that implements IBloodMagicPlugin and annotate it with
`@BloodMagicPlugin`. The `register` method will be called during init.

Currently implemented systems:
- Blacklisting
  - Teleposer
  - Teleposer (entity)
  - Transposition
  - Well of Suffering
  - Green Grove
- Setting sacrificial values
- Adding altar components

src/main/java/WayofTime/bloodmagic/item/sigil/ItemSigilPhantomBridge.java

@@ -11,7 +11,7 @@ import net.minecraft.world.World;
 
 import org.apache.commons.lang3.tuple.Pair;
 
-import WayofTime.bloodmagic.registry.RegistrarBloodMagicBlocks;
+import WayofTime.bloodmagic.core.RegistrarBloodMagicBlocks;
 
 public class ItemSigilPhantomBridge extends ItemSigilToggleableBase
 {