DataSet.add_column(): will merge another df without meta but checking and verifying for column meta to the main dataset. All data integrity helpers now raise instead of just warn. Renamed all these helpers to start with _verify instead of _test.
DataSet.add_column(): will merge another df without meta but checking and verifying for column meta to the main dataset. All data integrity helpers now raise instead of just warn. Renamed all these helpers to start with _verify instead of _test.

Quantipy/quantipy,Quantipy/quantipy,Quantipy/quantipy,Quantipy/quantipy