Labeled output of cmake command

[furushchev]

This patch makes the output of cmake commands run in lib/private/scripts/generate_build_file.py more helpful for debugging by prepending package name to the stdout/stderr of the command.
It will look more understandable especially when jobs > 1.

     [rosidl_typesupport_c] -- The C compiler identification is GNU 13.3.0
     [rosidl_parser] -- The C compiler identification is GNU 13.3.0
     [rosidl_typesupport_cpp] -- The C compiler identification is GNU 13.3.0
     [rosidl_generator_c] -- The C compiler identification is GNU 13.3.0
     [rcl_interfaces] -- The C compiler identification is GNU 13.3.0
     [unique_identifier_msgs] -- The C compiler identification is GNU 13.3.0
     [rosidl_typesupport_cpp] -- The CXX compiler identification is GNU 13.3.0
     [rosidl_parser] -- The CXX compiler identification is GNU 13.3.0
     [ament_cmake_flake8] -- The CXX compiler identification is GNU 13.3.0
     [rosidl_generator_c] -- The CXX compiler identification is GNU 13.3.0
     [rosidl_typesupport_cpp] -- Detecting C compiler ABI info
     [rosidl_typesupport_c] -- The CXX compiler identification is GNU 13.3.0
     [rosidl_runtime_c] -- The CXX compiler identification is GNU 13.3.0
     [rosidl_parser] -- Detecting C compiler ABI info
     [ament_cmake_flake8] -- Detecting C compiler ABI info
     [rcl_interfaces] -- The CXX compiler identification is GNU 13.3.0
     [rosidl_generator_c] -- Detecting C compiler ABI info
     [unique_identifier_msgs] -- The CXX compiler identification is GNU 13.3.0

---

This change is