New Features

• TemporalNorm with ReVIN learnable parameters @kdgutier (#768)
• support optuna in auto models @jmoralez (#763)
• [FEAT] TimesNet model @cchallu (#757)
• add local_scaler_type @jmoralez (#754)
• [FEAT] Implementation of Exogenous - NBEATSx @akmalsoliev (#738)

Bug Fixes

• [FIX] futr_exog_list in Auto and HINT classes @cchallu (#773)
• fix off by one error in BaseRecurrent available_ts @KeAWang (#759)

Documentation

• [DOCS] Scaling tutorial @cchallu (#770)
• [DOCS] Auto hyperparameter selection with optuna @cchallu (#767)
• [DOCS] Update tutorials to v.1.6.3 @cchallu (#741)

Enhancement

• check futr_exog_list are in futr_df @jmoralez (#769)