Removed and moved tape measure and grid config to ign-gui

Migration.md

@@ -5,6 +5,13 @@ Deprecated code produces compile-time warnings. These warning serve as
 notification to users that their code should be upgraded. The next major
 release will remove the deprecated code.
 
+## Ignition Gazebo 5.x to 6.x
+
+* Some GUI plugins have been moved to Ignition GUI. Gazebo users don't need to
+ change their configuration files, the plugins will be loaded the same way.
+ * Grid Config
+ * Tape Measure
+
 ## Ignition Gazebo 4.x to 5.x
 
 * Use `cli` component of `ignition-utils1`.

src/gui/plugins/CMakeLists.txt

@@ -121,15 +121,13 @@ add_subdirectory(modules)
 add_subdirectory(align_tool)
 add_subdirectory(component_inspector)
 add_subdirectory(entity_tree)
-add_subdirectory(grid_config)
 add_subdirectory(joint_position_controller)
 add_subdirectory(lights)
 add_subdirectory(playback_scrubber)
 add_subdirectory(plotting)
 add_subdirectory(resource_spawner)
 add_subdirectory(scene3d)
 add_subdirectory(shapes)
-add_subdirectory(tape_measure)
 add_subdirectory(transform_control)
 add_subdirectory(video_recorder)
 add_subdirectory(view_angle)