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
Need to allow moving and such by specifying a clickable area
Will probably have the element override getClickableArea() and return a default. We'll then set that to new values after being moved.
