colcon-ed as part of the colcon common extensions?

[Briancbn]

Dear Maintainers,

Is it possible to add colcon-ed into the colcon-common-extensions?

Reasons

• colcon-ed is functionally is similar to rosed and in ROS 1 and rosed is installed by default.
• colcon-ed is working on Ubuntu and Windows. (In theory, it should work in MacOS too, but I don't know how to test it yet as I don't own one)
• colcon-ed is similar to colcon-cd as an utility tools and colcon-cd is installed by default with common extensions.
• No additional external dependencies are needed to install colcon-ed

Concerns

• I am currently the maintainer of colcon-ed and still very inexperienced in maintaining packages.
• It seems that some of the useful tools like mixin are also not included in the common extensions, which I don't know why.
• I don't think the usage rate of this tool is high yet.

Please let me know your thoughts:)