Added scikit-learn time series library

Author: pybokeh

PyData/UsefulPackages.txt

@@ -32,6 +32,7 @@ https://www.machinelearningplus.com/time-series/arima-model-time-series-forecast
 fbprophet: time series forecasting (additive model) which performs best with high frequency data
 PmProphet: https://github.com/luke14free/pm-prophet
 pyflux: time series library: https://github.com/RJT1990/pyflux
+sktime: https://github.com/alan-turing-institute/sktime
 
 # For survival analysis, modeling churn and conversion rates
 lifelines: survival analysis: https://github.com/CamDavidsonPilon/lifelines