ENH/BUG: Filename fix for #1173

[aburrell]

Description

Addresses #1173 by introducing consideration of supplied type when parsing filename formats.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

How Has This Been Tested?

Ran using a modified example from the test case:

import pysat
files = ["jro20230417drifts.001.hdf5”, “jro20230417drifts.txt.hdf5"]
format_str = "jro{year:04d}{month:02d}{day:02d}drifts.{version:03d}.hdf5"
pysat.utils.files.parse_fixed_width_filenames(files, format_str)

The output should not have the second file in files as a viable output file.

Test Configuration:

• Operating system: OS X. Big Sur
• Version number: Python 3.8
• Any details about your local setup that are relevant

Checklist:

• [N/A] Make sure you are merging into the develop (not main) branch
• 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
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• Add a note to CHANGELOG.md, summarizing the changes

If this is a release PR, replace the first item of the above checklist with the release
checklist on the wiki: https://github.com/pysat/pysat/wiki/Checklist-for-Release

[aburrell]

Coverage drop appears to be a rounding error.