Issue #391: Remove /config from release package

[zacbaum]

Description

Removes unnecessary __init__.py files and updates the setup.py script to only package required files in the releases.

Fixes #391

Type of change

• Other (if none of the other choices apply)

Checklist

Put an x in the boxes that apply. You can also fill these out after creating the PR.
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• I have
  installed pre-commit
  and formatted all changed files.
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  e.g. Issue #<issue number>: detailed message.
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

[codecov-commenter]

Codecov Report

Merging #392 into develop will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop     #392   +/-   ##
========================================
  Coverage    98.65%   98.65%           
========================================
  Files           29       29           
  Lines         1704     1704           
========================================
  Hits          1681     1681           
  Misses          23       23           

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