v0.0.23: Support for string labels

Initial support for string labels (#20)

* support string labels

Signed-off-by: Dimid Duchovny <dimidd@localize.city>

* fix doctest

Signed-off-by: Dimid Duchovny <dimidd@localize.city>

Co-authored-by: Dimid Duchovny <dimidd@localize.city>

v0.0.22: Autotune support added

flake8 fixes

v0.0.21: SeriesFtClassifier added

Fixes for SeriesFtClassifier