Fixed bug in docker file preventing creation of usable package

[chinmayshah99]

Added copying of .so file which was accidently removed. Also, moved installation from pipenv to pip

Pull Request

Description

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Affected Dependencies

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Type of Change

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• Bug fix (non-breaking change which fixes an issue)
• Documentation (non-breaking change which adds documentation)
• Improvement (non-breaking change that improves the performance or reliability of existing functionality)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

How has this been tested?

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Checklist

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• I have added tests for my changes

Additional Context

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