Lasso regrression in plot_time_series_regression function

[wmendieta89]

It would be very good to add a parameter on the plot_time_series_regression function to control the type of model you would like to test. Since this function is for feature selection, it would be great if it includes other methods such as lasso regression.

[mdancho84]

I will see what improvements can be made. Thanks for this suggestion.