Prepare to release

[aerorahul]

Description
This PR prepares to make a version 0.1.0 release of wxflow.
This PR:

• adds a automation to publish the package directly to PyPI when a tag is released.
• allows the user to directly import the module without having to know the name of .py script that the module resides in.
• Updates README.md to provide standard installation instructions

Type of change

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

How Has This Been Tested?

• pytests

Checklist

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

[HenryRWinterbottom]

If you specify Python :: 3 here, why do you need to include 3.7 - 3.11? My understanding was that `Python :: 3`` should cover all Python version 3 releases. Is this just decorative?

[aerorahul]

Because the underlying code will not work w/ 3.6 or below because the dependencies have become deprecated.
I urge you to try and install this w/ e.g. 3.5

[HenryRWinterbottom]

I believe you. I was just curious as to what your reasoning was here. I see you addressed this here and here. Maybe this is OK.

[WalterKolczynski-NOAA]

Would love to be able to say 3.7+ instead of listing every minor version, but aside from that it looks good.

[aerorahul]

Feel free to scour the internet for that.