Feature/hsi

[DavidHuber-NOAA]

Description

Create a set of functions to enable interfacing with hsi and htar within Python.

Partly resolves #2.

Type of change

• [x] New feature (non-breaking change which adds functionality)
• [x] This change requires a documentation update

How Has This Been Tested?

• [x] pynorms
• [ ] pytests New tests cannot be added at this time, but will be soon. In the meantime, tests were written manually for each new function and tested locally.

Checklist

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] My changes need updates to the documentation. I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [x] New and existing tests pass with my changes
• [x] Any dependent changes have been merged and published

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 18.51852% with 110 lines in your changes are missing coverage. Please review.

Project coverage is 48.10%. Comparing base (81bfec0) to head (c47a003).

Files	Patch %	Lines
src/wxflow/hsi.py	12.50%	77 Missing :warning:
src/wxflow/htar.py	24.24%	25 Missing :warning:
src/wxflow/fsutils.py	33.33%	8 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #21 +/- ## =========================================== - Coverage 50.88% 48.10% -2.78% =========================================== Files 16 18 +2 Lines 1476 1609 +133 Branches 313 336 +23 =========================================== + Hits 751 774 +23 - Misses 669 779 +110 Partials 56 56 ```

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[DavidHuber-NOAA]

I am going to rework hsi and htar to work within classes instead of standalone functions.