Return sensible results for archived repositories

[alerque]

I've recently done a big of housekeeping across half a dozen orgs using Gitlab and we are now faced with a bunch of archived projects. GitLab handles this pretty graciously, but now the trouble is glab goes right on operating on all repositories if nothing changed.

• [ ] It would be nice if ⓐ the search and ⓑ future list commands (c.f. #958) had some sort of flag to exclude archived repositories from their results and...
• [ ] If output that does include such repositories reflect their status somehow so that there is some indication they are archived. Archived repos are read only and hence...
• [ ] Attempting operations on them such as creating issues should return a sensible error having checked their status somehow rather than just returning the 403 forbidden header.

[clemsbot]

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