Spacectl Deploy and Logs Enhancement

In an effort to make Spacectl more CI friendly, it’ll be useful to have the following features.

1. With spacectl stack deploy --tail command, it’ll be useful to optionally have spacectl exit cleanly IF the tail hits an UNCONFIRMED state.

2. With spacectl stack log --tail command, it’ll be useful to optionally have spacectl exit cleanly IF the tail hits an UNCONFIRMED state.

3. With spacectl stack deploy command, it’ll be useful to optionally have spacectl only return the run ID

The above requested features have workarounds in my process such as using grep for output filtering and subshell execution for looping through tails for better control, but the process could be improved and handle errors much better if the above was added.