Dynatademand

- Adds the reconcile_project function.
- Pushes the README file to PyPI.
- Reduces the amount of dependencies required to install the package.

- Added links to other Demand API clients.
- Added pull request test workflow
- Added supported versions to pyproject.toml
- Updated README with more detailed usage examples and more explanation about installing the package and running tests.
- Added PyPI version badge
- Added support for Python 3.5, 3.6, and 3.7 on PyPI.