radicle: add `list_by_status` method to `cob::issue::Issues`
Provides the same list_by_status, opened, closed and solved methods that
cob::patch::Patches has to Issues
Provides the same list_by_status, opened, closed and solved methods that
cob::patch::Patches has to Issues
Rename closed_solved to solved and closed_other to closed
Add test_list_by_status
Fix clippy issue
Looks good :)
lgtm
Rebase.