Depsgraph: Use depsgraph to handle edit mode selection

This is crucial bit since batch cache is stored in the evaluated object,
meaning we can't tag it's hatch cache dirty from the notifier system.
Not easily at least. Better to leave this job to depsgraph, it knows
all the copies of data.

source/blender/depsgraph/intern/nodes/deg_node_component.h

@@ -162,6 +162,7 @@ struct ComponentDepsNode : public DepsNode {
 	}
 
 DEG_COMPONENT_DECLARE_GENERIC(Animation);
+DEG_COMPONENT_DECLARE_GENERIC(BatchCache);
 DEG_COMPONENT_DECLARE_GENERIC(Cache);
 DEG_COMPONENT_DECLARE_GENERIC(CopyOnWrite);
 DEG_COMPONENT_DECLARE_GENERIC(Geometry);