v0.13.0

• Fix error in nodes' simulation (base.py)

• Use residuals and KDE for predictive simulations

• plot method for MTS (univariate and multivariate time series forecasting) objects

• this notebook contains some examples based on nnetsauce v0.13.0: https://github.com/Techtonique/nnetsauce/blob/master/nnetsauce/demo/thierrymoudiki_250923_nnetsauce_mts_plots.ipynb