Implement alifestd prune extinct utility

[codecov[bot]]

Codecov Report

Patch coverage: 96.42% and project coverage change: -0.37% :warning:

Comparison is base (00c65e8) 97.53% compared to head (40e120e) 97.16%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #123 +/- ## ========================================== - Coverage 97.53% 97.16% -0.37% ========================================== Files 595 596 +1 Lines 7918 7945 +27 ========================================== - Hits 7723 7720 -3 - Misses 195 225 +30 ``` | [Flag](https://app.codecov.io/gh/mmore500/hstrat/pull/123/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Matthew+Andres+Moreno) | Coverage Δ | | |---|---|---| | [tests](https://app.codecov.io/gh/mmore500/hstrat/pull/123/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Matthew+Andres+Moreno) | `97.16% <96.42%> (-0.37%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Matthew+Andres+Moreno#carryforward-flags-in-the-pull-request-comment) to find out more. | [Files Changed](https://app.codecov.io/gh/mmore500/hstrat/pull/123?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Matthew+Andres+Moreno) | Coverage Δ | | |---|---|---| | [...ry\_lib/\_alifestd\_prune\_extinct\_lineages\_asexual.py](https://app.codecov.io/gh/mmore500/hstrat/pull/123?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Matthew+Andres+Moreno#diff-aHN0cmF0L19hdXhpbGlhcnlfbGliL19hbGlmZXN0ZF9wcnVuZV9leHRpbmN0X2xpbmVhZ2VzX2FzZXh1YWwucHk=) | `96.15% <96.15%> (ø)` | | | [hstrat/\_auxiliary\_lib/\_\_init\_\_.py](https://app.codecov.io/gh/mmore500/hstrat/pull/123?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Matthew+Andres+Moreno#diff-aHN0cmF0L19hdXhpbGlhcnlfbGliL19faW5pdF9fLnB5) | `100.00% <100.00%> (ø)` | | | [...\_auxiliary\_lib/\_alifestd\_unfurl\_lineage\_asexual.py](https://app.codecov.io/gh/mmore500/hstrat/pull/123?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Matthew+Andres+Moreno#diff-aHN0cmF0L19hdXhpbGlhcnlfbGliL19hbGlmZXN0ZF91bmZ1cmxfbGluZWFnZV9hc2V4dWFsLnB5) | `100.00% <100.00%> (ø)` | | ... and [12 files with indirect coverage changes](https://app.codecov.io/gh/mmore500/hstrat/pull/123/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Matthew+Andres+Moreno)

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