Add ctop

[jampow]

New App Submission

• [x] I've read the contribution guidelines.

Repo or homepage link:

https://github.com/bcicen/ctop

Description:

Top-like interface for container metrics

Why I think it's awesome:

This tool lists all running containers and gives me a vim-like navigation to trigger some commands on each container, like view log, stop, start, run shell, etc.