custom cmake target: idf.py clean-ros (#105) (#106)

* custom cmake target: idf.py clean-ros

* Update CMakeLists.txt

* Update README.md

Co-authored-by: Antonio Cuadros <49162117+Acuadros95@users.noreply.github.com>
(cherry picked from commit df431ce)

Co-authored-by: donRaphaco <fixed-term.Raphael.Vogelgsang@de.bosch.com>

Author: mergify[bot]

CMakeLists.txt

@@ -67,3 +67,5 @@ target_link_libraries(${COMPONENT_LIB} INTERFACE libmicroros-prebuilt)
 set_directory_properties( PROPERTIES ADDITIONAL_CLEAN_FILES
     "${COMPONENT_DIR}/include;${COMPONENT_DIR}/micro_ros_dev;${COMPONENT_DIR}/micro_ros_src;${COMPONENT_DIR}/esp32_toolchain.cmake" )
 
+add_custom_target(clean-microros COMMAND ${submake} -f libmicroros.mk clean
+                            WORKING_DIRECTORY ${COMPONENT_DIR})

README.md

@@ -43,7 +43,7 @@ idf.py monitor
 To clean and rebuild all the micro-ROS library:
 
 ```bash
-make -f libmicroros.mk clean
+idf.py clean-microros
 ```
 
 Is possible to use a micro-ROS Agent just with this docker command: