Allow devspace list commands to have organized output.

[ethankhall]

Is your feature request related to a problem?
Yes, it's a usability problem

Which solution do you suggest?

Allow the .commands elements have a "section" option that will be used in devspace list commands to group similar commands.

For my use case, I want "Initialization", "Shell Access", "Debug", "Logs", and "Operations" sections in the output to allow
developers to quickly see the types of commands available.

Which alternative solutions exist?
Order the commands in devspace.yaml in the order we want engineers to read it, and prefix every command with a way to order is.

Additional context

We have ~35 commands.

/kind feature

[FabianKramm]

@ethankhall thanks a lot for creating this issue! Yes we can implement that!