`lab clone` support group

[liriansu-opus]

if there are 4 repo:

core/user
core/server
core/deploy
my/user

i want to use something like lab clone core/ to clone all repo in group

[webbrain-one]

Hi there! 👋

Thanks for the suggestion. I've opened a PR that adds support for cloning entire groups: #32

With this change, you'll be able to run lab clone core/ to clone all repositories in that group. Let me know what you think! 🚀