Apply black

[aerorahul]

Description This PR:

• applies black to all source code and tests.

Type of change

• [X] Bug fix (non-breaking change which fixes an issue)
• [X] New feature (non-breaking change which adds functionality)

How Has This Been Tested?

• [X] pytests
• [X] pynorms

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

[codecov[bot]]

Codecov Report

Merging #7 (3f671e4) into develop (f084062) will not change coverage. The diff coverage is 53.84%.

@@           Coverage Diff            @@
##           develop       #7   +/-   ##
========================================
  Coverage    48.91%   48.91%           
========================================
  Files           15       15           
  Lines         1429     1429           
  Branches       305      305           
========================================
  Hits           699      699           
  Misses         676      676           
  Partials        54       54           

Impacted Files	Coverage Δ
src/wxflow/exceptions.py	66.66% <ø> (ø)
src/wxflow/schema.py	18.57% <2.77%> (ø)
src/wxflow/task.py	33.33% <16.66%> (ø)
src/wxflow/configuration.py	56.98% <40.00%> (ø)
src/wxflow/executable.py	54.96% <40.00%> (ø)
src/wxflow/factory.py	69.44% <40.00%> (ø)
src/wxflow/attrdict.py	37.60% <53.84%> (ø)
src/wxflow/jinja.py	68.67% <62.50%> (ø)
src/wxflow/yaml_file.py	81.39% <81.81%> (ø)
src/wxflow/template.py	76.84% <84.61%> (ø)
... and 5 more

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[aerorahul]

This is not going to work. black ignores PEP8 guidelines.