Add blacklisting support for ROS 1 / Add options to continue despite errors / Allow to build to build stage

[lreiher]

• adds blacklisting support for ROS 1
• adds new config variables to continue despite errors
  • ENABLE_CONTINUE_BUILD_DESPITE_ERRORS: Enable catkin build --continue-on-failure / colcon build --continue-on-error
  • ENABLE_CONTINUE_ROSDEP_INSTALL_DESPITE_ERRORS: Enable rosdep install -r
• allow to build up to build stage for devel space
  • build stage is where the source code has been built but source code is still present
  • if building in ROS 1 only works in devel, but not install space, the build stage is a good final image target
  • in order to build devel space, new config variable ENABLE_ROS1_DEVEL_SPACE is added