Blender Git Loki

Geometry Nodes: Change modifier name

The modifier was called "Empty", which reflects the fact that the modifier
doesn't do anything when you add it. However, that is not true after you
change the modifier's node group, and the fact that the modifier uses
nodes is the one thing that distinguishes it at this point. This commit
changes the name to "Geometry Nodes", which is simple and consistent
with the "Geometry Node Editor" and the naming of the project so far.