Build System
- Add numpy as a dependency
([`5293b0d`](https://github.com/UBC-MDS/tidylinreg/commit/5293b0df82d3a834bcab2ed649b37c57e4cc7bfe))
- Add pytest and pytest-cov as dev dependencies
([`61bdbf9`](https://github.com/UBC-MDS/tidylinreg/commit/61bdbf95135ff99be35b8ccfe73edd41ac9efe44))
- Added `statsmodels` as dependency for development
([`ebd7403`](https://github.com/UBC-MDS/tidylinreg/commit/ebd7403b6b7fff1a13a69986a58edbeb3a14ac69))
- Added dev dependencies for docs
([`c749a13`](https://github.com/UBC-MDS/tidylinreg/commit/c749a13ed52d4514f02eef1599d2bd77b74a459c))
- Added scipy as a dependency
([`968611d`](https://github.com/UBC-MDS/tidylinreg/commit/968611d321a8ed10084a974b62d1460f538f66cd))
- Remove upper bound on dependency versions
([`77eae1f`](https://github.com/UBC-MDS/tidylinreg/commit/77eae1f9e3f81647683e65adb3c9824c68555cc7))