[wip/prf-gazebo-ros-pkgs-melodic] add missing dependency to nodelet

prf-gazebo-ros-pkgs-melodic/Makefile

@@ -36,6 +36,7 @@ CMAKE_PREFIX_PATH+= ${PREFIX}
 include ../../devel/boost-headers/depend.mk
 include ../../devel/boost-libs/depend.mk
 include ../../devel/ros-catkin/depend.mk
+include ../../devel/ros-nodelet-core/depend.mk
 include ../../middleware/ros-comm/depend.mk
 include ../../devel/ros-pluginlib/depend.mk
 include ../../devel/ros-ros/depend.mk