1) Merge two separate data-access modules into one model_data_access.py which now lives in cropcore.
2) Makes the data access for ARIMA flexible: Tables, columns and joins can now be specified in the existing config.ini, which is now configured to obtain the same two data tables / columns which were previously hardcoded.
The PR does two things:
1) Merge two separate data-access modules into one model_data_access.py which now lives in cropcore. 2) Makes the data access for ARIMA flexible: Tables, columns and joins can now be specified in the existing config.ini, which is now configured to obtain the same two data tables / columns which were previously hardcoded.