chore(docker): add dockerfile with python and utilize default cmd

[JordanSussman]

❤ THANKS FOR HELPING OUT :D

Proposed change

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Types of changes

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• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

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• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

[coveralls]

Pull Request Test Coverage Report for Build 105

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 38.11%

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Totals
Change from base Build 103:	0.0%
Covered Lines:	742
Relevant Lines:	1947

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💛 - Coveralls

[wass3r]

thanks, lgtm! 👍