Merge branch 'felix_issue287_tech-wrf-datahandler-should-inherit-from-singlestationdatahandler' of ssh://gitlab.version.fz-juelich.de:10022/esde/machine-learning/mlair into felix_issue287_tech-wrf-datahandler-should-inherit-from-singlestationdatahandler

Merge branch 'develop' into 'felix_issue287_tech-wrf-datahandler-should-inherit-from-singlestationdatahandler'

default data handler and preprocessing support parameter use_multiprocessing....

See merge request !284

default data handler and preprocessing support parameter use_multiprocessing. Parameter is set to False on DEBUG always. /close #297 on pipeline success

Merge branch 'felix_issue295-transformation-parameters-in-data_handler' into 'felix_issue287_tech-wrf-datahandler-should-inherit-from-singlestationdatahandler'

Felix issue295 transformation parameters in data handler

See merge request !278

Resolve "fix separation of scales data handler"

See merge request !272

Resolve "implement lazy data preprocessing"

See merge request !274

data handlers with filters will create negative values, which is incompatible with log transformation. standardization will be used in this cases

Merge branch 'lukas_issue292_feat_data-preprocessing' into 'lukas_issue290_bug_fix-separation-of-scales-data-handler'

include lazy preprocessing

See merge request !275

Merge branch 'lukas_issue290_bug_fix-separation-of-scales-data-handler' into 'lukas_issue292_feat_data-preprocessing'

# Conflicts:
#   mlair/data_handler/data_handler_mixed_sampling.py