Features
* Similarity encoding
Bug fixes and other changes
* Merge pull request 40 from GiannisMitr/tsfresh_extractor_speedups
* apply feature thresholds before extracting features & add cap in total generated features.
* remove RobustScaler from TSFreshExtractor.
* enable parallelism in TSFeature extraction, excluding "sagemaker_serve" executions
* Merge pull request 39 from zkarnin/sim_encode
* Fixing broken dependency in tsfresh