Update version to 0.2.0 and prepare for release

[aerorahul]

Description Prepare for release 0.2.0

Type of change

• [X] New release

How Has This Been Tested?

• [ ] pynorms
• [ ] 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

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 48.23%. Comparing base (f6938c7) to head (a37274a).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #34 +/- ## ======================================== Coverage 48.23% 48.23% ======================================== Files 18 18 Lines 1644 1644 Branches 335 335 ======================================== Hits 793 793 Misses 791 791 Partials 60 60 ```

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