Add job list in build output

[mcncl]

Changes

This allows the printing of build jobs to the terminal. We can kind of safely assume that a build will always have at least one job, but could implement tests too if eventually.

The output looks like:

I didn't want the time to become the focus, so made it grey in colour.

[jradtilbrook]

Ohh nice addition 👍 One thing though, I don't think this will handle non-command type steps as I can see it uses timestamps and falls back to the Command job field which would be nil. We can follow up with those improvements in another PR