Release 1.6.0

Lightwood 1.6.0 changelog:

Many thanks to our community contributors for this release!
@MichaelLantz @mrandri19 @ongspxm @vaithak

Features:

• SHAP analysis block (#679, @mrandri19)
• Disable GlobalFeatureImportance when we have too many columns (#681, @ongspxm; #698)
• Added cleaner support for file path data types (image, audio, video) (#675)
• Add partial_fit() to sktime mixer (#689)
• Add ModeEnsemble (#692, @mrandri19)
• Add weighted MeanEnsembler (#680, @vaithak)

Bug fixes:

• Normalized column importance range (#690)
• Fix ensemble supports_proba in calibrate.py (#694, @mrandri19)
• Remove self-referential import (#696)
• Make a integration test for time_aim (#685, @MichaelLantz)
• Fix for various datasets (#700)

Other

• Improve logging for analysis blocks (#677; @MichaelLantz)
• Custom block example: LabelEncoder (#663)
• Implement ShapleyValues analysis (#679)
• Move array/TS normalizers to generic helpers (#702)