mesh tool to fill in holes, added in mesh clean menu,

unlike other face creation tools it copies data from surrounding faces.

release/scripts/startup/bl_ui/space_view3d.py

@@ -1822,6 +1822,7 @@ class VIEW3D_MT_edit_mesh(Menu):
         layout.menu("VIEW3D_MT_edit_mesh_edges")
         layout.menu("VIEW3D_MT_edit_mesh_faces")
         layout.menu("VIEW3D_MT_edit_mesh_normals")
+        layout.menu("VIEW3D_MT_edit_mesh_clean")
 
         layout.separator()
 
@@ -2084,6 +2085,15 @@ class VIEW3D_MT_edit_mesh_normals(Menu):
         layout.operator("mesh.flip_normals")
 
 
+class VIEW3D_MT_edit_mesh_clean(Menu):
+    bl_label = "Clean"
+
+    def draw(self, context):
+        layout = self.layout
+
+        layout.operator("mesh.fill_holes")
+
+
 class VIEW3D_MT_edit_mesh_delete(Menu):
     bl_label = "Delete"