PUBDEV-3132: Add ability to drop a list of columns or a subset of rows from an H2OFrame
PUBDEV-3132: Add ability to drop a list of columns or a subset of rows from an H2OFrame

Add case when column name is passed in as a string

h2oai/h2o-3,h2oai/h2o-dev,mathemage/h2o-3,jangorecki/h2o-3,michalkurka/h2o-3,michalkurka/h2o-3,jangorecki/h2o-3,mathemage/h2o-3,h2oai/h2o-3,jangorecki/h2o-3,h2oai/h2o-3,mathemage/h2o-3,michalkurka/h2o-3,h2oai/h2o-3,jangorecki/h2o-3,h2oai/h2o-3,spennihana/h2o-3,h2oai/h2o-3,h2oai/h2o-dev,michalkurka/h2o-3,mathemage/h2o-3,spennihana/h2o-3,jangorecki/h2o-3,michalkurka/h2o-3,mathemage/h2o-3,h2oai/h2o-dev,jangorecki/h2o-3,michalkurka/h2o-3,h2oai/h2o-dev,h2oai/h2o-dev,spennihana/h2o-3,spennihana/h2o-3,mathemage/h2o-3,michalkurka/h2o-3,h2oai/h2o-3,h2oai/h2o-dev,spennihana/h2o-3,h2oai/h2o-dev,spennihana/h2o-3,spennihana/h2o-3,mathemage/h2o-3,h2oai/h2o-3,jangorecki/h2o-3