Added coverage reporting

[sseraj]

Purpose

Added codecov coverage. I also added a few entries to the gitignore file.

Type of change

What types of change is it? Select the appropriate type(s) that describe this PR

• [ ] Bugfix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (non-backwards-compatible fix or feature)
• [ ] Code style update (formatting, renaming)
• [ ] Refactoring (no functional changes, no API changes)
• [ ] Documentation update
• [x] Maintenance update
• [ ] Other (please describe)

Testing

Explain the steps needed to test the new code to verify that it does indeed address the issue and produce the expected behavior.

Checklist

Put an x in the boxes that apply.

• [ ] I have run flake8 and black to make sure the code adheres to PEP-8 and is consistently formatted
• [ ] I have run unit and regression tests which pass locally with my changes
• [ ] I have added new tests that prove my fix is effective or that my feature works
• [ ] I have added necessary documentation

[codecov[bot]]

Codecov Report

:exclamation: No coverage uploaded for pull request base (master@95a103e). Click here to learn what that means. The diff coverage is n/a.

@@            Coverage Diff            @@
##             master      #31   +/-   ##
=========================================
  Coverage          ?   60.55%           
=========================================
  Files             ?        5           
  Lines             ?     1610           
  Branches          ?        0           
=========================================
  Hits              ?      975           
  Misses            ?      635           
  Partials          ?        0           

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