Geometry Nodes: support Noise Texture node

This makes the Noise Texture node available in geometry nodes.
It should behave the same as in shader node, with the exception
that it does not have an implicit position input yet. That will
be added separately.

Differential Revision: https://developer.blender.org/D12467

release/scripts/startup/nodeitems_builtins.py

@@ -604,6 +604,9 @@ geometry_node_categories = [
         NodeItem("FunctionNodeFloatToInt"),
         NodeItem("GeometryNodeSwitch"),
     ]),
+    GeometryNodeCategory("GEO_TEXTURE", "Texture", items=[
+        NodeItem("ShaderNodeTexNoise", poll=geometry_nodes_fields_poll),
+    ]),
     GeometryNodeCategory("GEO_VECTOR", "Vector", items=[
         NodeItem("ShaderNodeVectorCurve"),
         NodeItem("ShaderNodeSeparateXYZ"),