Is your feature request related to a problem? Please describe.
an problem for pack devs that want adding that.

Describe the solution you'd like
Adding support for adding Custom Meshes and an option for Mesh durability in the config to make that pack devs can configure the mod in their pack alot more.

Unfortunately, due to how Minecraft has changed from 1.12, custom meshes are not possible. However, I was able to implement mesh durability.