Dalex

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* adding the support for calculating kernel SHAP values via `predict_parts()` function

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* breaking change: change the name of `loss_yardstick()` to `get_loss_yardstick()` and `loss_default()` to `get_loss_default()`
* add `loss_one_minus_accuracy()` and `get_loss_one_minus_accuracy()` ([535](https://github.com/ModelOriented/DALEX/issues/535))

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* added implementation of aSHAP (aggregated SHAP) and waterfall plot ([519](https://github.com/ModelOriented/DALEX/issues/519))
* adding a new system for default color schemes ([541](https://github.com/ModelOriented/DALEX/issues/541))
* added `cross_entropy` as model performance measure to multilabel settings [542](https://github.com/ModelOriented/DALEX/issues/542)

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* removed the `yardstick` dependency
* new vignette added 'How to use DALEX with the yardstick package?'
* new datasets from World Happiness Report: `happiness_test` and `happiness_train` ([513](https://github.com/ModelOriented/DALEX/issues/513))
* new datasets from COVID morality: `covid_summer` and `covid_spring` ([513](https://github.com/ModelOriented/DALEX/issues/513))

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* changed URLs in the DESCRIPTION as requested in ([484](https://github.com/ModelOriented/DALEX/issues/484))
* Fix model_info documentation ([498](https://github.com/ModelOriented/DALEX/issues/498))
* Support for yardstic metrics ([495](https://github.com/ModelOriented/DALEX/issues/495))

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* Changed default in `explain(colorize=)` according to ([473](https://github.com/ModelOriented/DALEX/issues/473))
* Added explain/yhat support for `partykit` ([438](https://github.com/ModelOriented/DALEX/issues/438))
* `explain()` warns if target has more than two values for classification ([418](https://github.com/ModelOriented/DALEX/issues/418))