[enhancement] add path for git repos

[HannesBachter]

e.g. something like:

robot_ws/src
  cob_command_tools              [✓]     indigo_dev (+2)
  cob_common                     [✓]     kinetic_dev
  cob_control                    [✓]     melodic_dev (+2)
  cob_docking                    [✓]     indigo_dev (+4)
  cob_driver                     [✓]     kinetic_dev (+1)
  cob_hardware_test              [✓]     indigo_dev