science/py-gwlearn: Add py-gwlearn 0.1.1

The aim of the package is to provide implementations of spatially-explicit
modelling.

gwlearn provides a framework for prototyping geographically weighted extensions
of regression and classification models based on scikit-learn and libpysal.graph
and a subset of models implemented on top of this framework. For example, you
can run geographically weighted linear regression in a following manner.