v0.9.0 - Stability update

Version 0.9.0

New Cascade version is here - now it is an update that enhances stability and reliability of the package. New bugfixes, improved error messages, dataset versioning, more thorough testing.

Adds

• New way of dataset versioning. IMPORTANT! Be careful when updating from 0.8.0 because the way versioning works now changed and it will result in little bit inconsistent versions. #137 #138
• skeleton function to recursively extract the names of datasets from the pipeline #137
• The notion of SizedDataset which should solve the inconsistencies with Dataset interface that has no __len__ method
• Improved ConstantBaseline can now produce constants of any shape #135
• Metadata to TimeSeriesDataset #136

Refactors

• Copyright notices added where missing
• Better typing in all modules, parameters and methods
• Better code formatting
• RangeSampler now more protected against non-intended usage
• split now more protected against missing parameters
• HistoryVIewer's work with the lines
• MetricViewer.get_best_by method is now informs that it does not work with non-sortable metrics
• BasicTrainer.train protected against missing test_ds when eval_strategy provided
• YAMLHandler now raises an error if reading an empty file

Fixes

• The problem in UnderSampler with repeating elements
• The problem in WeighedSampler with string labels