Option to configure what to fetch instead of all tags & branches

Currently the way fetching works is that all tags & branches are fetched.

This is rather annoying, as it can bloat up the local repo, sometimes increasing the size substantially.

I end up having to use the terminal for fetches instead.

I'd like a way to configure which branches are being fetched, and if tags are included. I usually just fetch the `master` branch along with all tags.