rosed and roscd equivalent in ros2cli

[Briancbn]

Feature request

Feature description

A ros2edit and ros2cd package that can easily navigate and edit the workspace source folder, like how rosed and roscd can do in ROS 1, which was a huge convenience for me when there was no gui.

Implementation considerations

Most of the implementation will be similar to ros2run, but there will be a need to locate package path inside the workspace instead of the index space, I find that colcon list can return the information, but might be too slow and colcon have their own common extensions(open for suggestions).

I think ROS_WORKSPACE will also need to be specified, but without it we can look for packages from the current path.

I can try and write up a pr, but please let me know if it is needed or you have any suggestions.

[dirk-thomas]

Please see #75 which describes why a roscd command isn't available and that colcon_cd (colcon/colcon-cd#1) provides an alternative.

For rosed the challenges are very similar than for roscd. I am not sure if it makes sense to implement something like this as a colcon extension (similar to colcon_cd).

[Briancbn]

@dirk-thomas Yes it makes much more sense actually. I think I will try to do it as a colcon extension.

[hidmic]

@dirk-thomas @Briancbn would it make sense to close this issue / transfer it to a colcon repo?

[dirk-thomas]

I will go ahead with closing the ticket here.

@Briancbn Please feel free to contribute to colcon. If the addition is in form of a new repo please create it under your own GitHub user and when it is ready we can move it into the colcon org unit (as per recommendation).