Callbacks for when copies of entities are made by Multidimensional Baby and Angelic Prism

[TaigaTreant]

Currently, if you want to copy over custom effects on tears/bombs/knives/etc. that have been copied by Multidimensional Baby and Angelic Prism, you have to manually check. It would be helpful if there were callbacks for these effects to simplify this.

[ConnorForan]

I remember looking into this previously but scope creeped it into working on more general split tears support as a whole (ie crickets body and friends). Made good progress but didn't quite finish it. I should go back to that.

I feel like potentially all of these things could share the same callback? Perhaps as long as you are able to tell which item it is related to?