Blender Git Loki

Geometry Nodes: Link error when implicit conversion isn't possible

This turns links red if no implicit conversion can be made between the
from socket and the to socket. For geometry nodes this happens with
object, geometry, collection, and string sockets that are connected to
a different type. The change is simply implementing a callback that is
already implemented for other node tree types.

Differential Revision: https://developer.blender.org/D11229