feat: add minor inference for long period tides to address #327

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 16.25000% with 67 lines in your changes missing coverage. Please review.

Project coverage is 72.09%. Comparing base (bd3d702) to head (8c74479). Report is 11 commits behind head on main.

Files with missing lines	Patch %	Lines
pyTMD/predict.py	15.25%	49 Missing and 1 partial :warning:
pyTMD/arguments.py	6.25%	15 Missing :warning:
pyTMD/io/model.py	60.00%	1 Missing and 1 partial :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #342 +/- ## ========================================== + Coverage 71.65% 72.09% +0.43% ========================================== Files 39 39 Lines 11042 10417 -625 Branches 1522 1395 -127 ========================================== - Hits 7912 7510 -402 + Misses 2632 2440 -192 + Partials 498 467 -31 ``` | [Flag](https://app.codecov.io/gh/tsutterley/pyTMD/pull/342/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Tyler+Sutterley) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/tsutterley/pyTMD/pull/342/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Tyler+Sutterley) | `72.09% <16.25%> (+0.43%)` | :arrow_up: | 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=Tyler+Sutterley#carryforward-flags-in-the-pull-request-comment) to find out more.

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