Outliner: Properties editor sync on selection

When outliner datablocks are selected, switch to the corresponding tab
for that datablock in properties editors. Only properties editors
that share an edge with the outliner will change tabs.

Additionally, when modifiers, constraints, and shader effects are
selected from the outliner, the panel will be expanded in all properties
editors.

Part of T77408

Manifest Task: https://developer.blender.org/T63991

Differential Revision: https://developer.blender.org/D8638

source/blender/blenkernel/BKE_constraint.h

@@ -183,6 +183,8 @@ bool BKE_constraint_remove_ex(ListBase *list,
                               bool clear_dep);
 bool BKE_constraint_remove(ListBase *list, struct bConstraint *con);
 
+void BKE_constraint_panel_expand(struct bConstraint *con);
+
 /* Constraints + Proxies function prototypes */
 void BKE_constraints_proxylocal_extract(struct ListBase *dst, struct ListBase *src);
 bool BKE_constraints_proxylocked_owner(struct Object *ob, struct bPoseChannel *pchan);