Update list commands

[claytonrcarter]

• add issue/mr list --milestone=any/none
• add issue/mr list --assignee=any/none
• add mr list --approver=...
• add issue/mr list --reviewer=any/none
• add tests for all of the above, and then some

[codecov[bot]]

Codecov Report

Patch coverage: 87.75% and project coverage change: +0.35 :tada:

Comparison is base (fd0dccf) 55.88% compared to head (dc26d56) 56.24%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #860 +/- ## ========================================== + Coverage 55.88% 56.24% +0.35% ========================================== Files 77 77 Lines 5774 5823 +49 ========================================== + Hits 3227 3275 +48 - Misses 2257 2261 +4 + Partials 290 287 -3 ``` | [Impacted Files](https://app.codecov.io/gh/zaquestion/lab/pull/860?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Zaq%3F+Wiedmann) | Coverage Δ | | |---|---|---| | [cmd/label\_list.go](https://app.codecov.io/gh/zaquestion/lab/pull/860?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Zaq%3F+Wiedmann#diff-Y21kL2xhYmVsX2xpc3QuZ28=) | `100.00% <ø> (+10.81%)` | :arrow_up: | | [internal/gitlab/gitlab.go](https://app.codecov.io/gh/zaquestion/lab/pull/860?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Zaq%3F+Wiedmann#diff-aW50ZXJuYWwvZ2l0bGFiL2dpdGxhYi5nbw==) | `8.60% <0.00%> (-0.01%)` | :arrow_down: | | [internal/config/config.go](https://app.codecov.io/gh/zaquestion/lab/pull/860?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Zaq%3F+Wiedmann#diff-aW50ZXJuYWwvY29uZmlnL2NvbmZpZy5nbw==) | `21.29% <50.00%> (-0.82%)` | :arrow_down: | | [cmd/mr\_edit.go](https://app.codecov.io/gh/zaquestion/lab/pull/860?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Zaq%3F+Wiedmann#diff-Y21kL21yX2VkaXQuZ28=) | `64.07% <66.66%> (ø)` | | | [cmd/util.go](https://app.codecov.io/gh/zaquestion/lab/pull/860?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Zaq%3F+Wiedmann#diff-Y21kL3V0aWwuZ28=) | `74.27% <66.66%> (-0.45%)` | :arrow_down: | | [cmd/mr\_list.go](https://app.codecov.io/gh/zaquestion/lab/pull/860?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Zaq%3F+Wiedmann#diff-Y21kL21yX2xpc3QuZ28=) | `72.72% <97.36%> (+5.77%)` | :arrow_up: | | [cmd/issue\_create.go](https://app.codecov.io/gh/zaquestion/lab/pull/860?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Zaq%3F+Wiedmann#diff-Y21kL2lzc3VlX2NyZWF0ZS5nbw==) | `75.24% <100.00%> (ø)` | | | [cmd/issue\_edit.go](https://app.codecov.io/gh/zaquestion/lab/pull/860?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Zaq%3F+Wiedmann#diff-Y21kL2lzc3VlX2VkaXQuZ28=) | `79.68% <100.00%> (ø)` | | | [cmd/issue\_list.go](https://app.codecov.io/gh/zaquestion/lab/pull/860?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Zaq%3F+Wiedmann#diff-Y21kL2lzc3VlX2xpc3QuZ28=) | `75.00% <100.00%> (+5.76%)` | :arrow_up: | | [cmd/label\_delete.go](https://app.codecov.io/gh/zaquestion/lab/pull/860?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Zaq%3F+Wiedmann#diff-Y21kL2xhYmVsX2RlbGV0ZS5nbw==) | `100.00% <100.00%> (ø)` | | | ... and [1 more](https://app.codecov.io/gh/zaquestion/lab/pull/860?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Zaq%3F+Wiedmann) | | ... and [1 file with indirect coverage changes](https://app.codecov.io/gh/zaquestion/lab/pull/860/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Zaq%3F+Wiedmann)

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[prarit]

@claytonrcarter is this now ready to go?

[claytonrcarter]

Yes, I believe so