`release list` for showing the changelog in the terminal

[leo]

This command should show the list of all releases for the current repository + their respective release messages and tags.

To minimize the data we need to pull from the GitHub API, we should lazy-load the releases. Only one should be shown at a time and if you want to see the next one, you can hit a key.

Could also accept an amount for releases to show on the first print: release list 5 (shows 5 releases before you need to hit a key).