Geometry Nodes: Make simulation caching optional

For realtime use cases, storing the geometry's state in memory at every
frame can be prohibitively expensive. This commit adds an option to
disable the caching, stored per object and accessible in the baking
panel. The default is still to enable caching.

Pull Request: https://projects.blender.org/blender/blender/pulls/107767

scripts/startup/bl_ui/properties_physics_geometry_nodes.py

@@ -39,6 +39,11 @@ class PHYSICS_PT_geometry_nodes(Panel):
         row.operator("object.simulation_nodes_cache_bake", text=bake_text).selected = True
         row.operator("object.simulation_nodes_cache_delete", text="", icon='TRASH').selected = True
 
+        layout.use_property_split = True
+        layout.use_property_decorate = False
+        ob = context.object
+        layout.prop(ob, "use_simulation_cache", text="Cache")
+
 
 classes = (
     PHYSICS_PT_geometry_nodes,