Add the ability to export Calculated Columns to be able to use in other SCIEX OS processing method

add the ability to export Calculated Columns from SCIEX OS processing method to be able to import into other processing methods (as is the case with flagging rules - you can import/export the flagging rules, but if you have calculated columns used in those flagging rules, you cannot export the calculation columns  - and they do not go with the flagging rules when exported)