Hair: Sculpt Mode Icons

From hair particle mode:
* Add
* Comb
* Cut
* Grow

New:
* Delete

Only comb and delete are used at the moment (by the new tools which are
under experimental).

source/blender/editors/datafiles/CMakeLists.txt

@@ -770,6 +770,11 @@ set_property(GLOBAL PROPERTY ICON_GEOM_NAMES
   ops.curve.extrude_move
   ops.curve.radius
   ops.curve.vertex_random
+  ops.curves.sculpt_add
+  ops.curves.sculpt_comb
+  ops.curves.sculpt_cut
+  ops.curves.sculpt_delete
+  ops.curves.sculpt_grow
   ops.generic.cursor
   ops.generic.select
   ops.generic.select_box