Add functionality to make axes with multiples of tau

[codecov[bot]]

Codecov Report

Base: 87.96% // Head: 87.30% // Decreases project coverage by -0.66% :warning:

Coverage data is based on head (37924a6) compared to base (d9ab861). Patch coverage: 14.28% of modified lines in pull request are covered.

:exclamation: Current head 37924a6 differs from pull request most recent head 5bd748f. Consider uploading reports for the commit 5bd748f to get more accurate results

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #46 +/- ## ========================================== - Coverage 87.96% 87.30% -0.67% ========================================== Files 24 24 Lines 773 780 +7 ========================================== + Hits 680 681 +1 - Misses 93 99 +6 ``` | [Impacted Files](https://codecov.io/gh/zapatacomputing/orqviz/pull/46?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=zapatacomputing) | Coverage Δ | | |---|---|---| | [src/orqviz/plot\_utils.py](https://codecov.io/gh/zapatacomputing/orqviz/pull/46/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=zapatacomputing#diff-c3JjL29ycXZpei9wbG90X3V0aWxzLnB5) | `22.85% <14.28%> (-0.96%)` | :arrow_down: | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=zapatacomputing). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=zapatacomputing)

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