Dev/com 653 open ice tests

[thetechnocrat-dev]

Changes

• Add coverage to pytest (currently 96% 👍)
• Add badges for circleci, pypi, coverage, and contributing
• Add documentation for running tests
• Add documentation for contributing
• Add coveralls

Preview README - the coverall badge is showing unknown, but it should show 96% after merge.

[hsiaut]

👍