Add gravestone-like feature for mobs by using the existing chrysalis #181
Description
The goal of the PR would be to add a gravestone-like feature for mobs by utilizing the existing chrysalis block/item.
- [add a item that is crafted in the bio-forge
- when the item is applied to a mob it's consumed and a flag is set in the mobs persistent data
(e.g.Entity#getPersistentData()) - on mob death check for the flag and store inside a chrysalis (with very low health) and place the chrysalis in the world at the death location
Note: The item texture can be a placeholder