Goal: 

The current InstructLab KFT out of tree provider assumes the data path you are providing has been processed using the training library's DataProcess entry point.

While this is a fine assumption, adding an optional pre-flight to process the data is necessary as the SDG provider implementation is not planning on processing the data at the ilab-on-ocp SDG component of the KFP does today. 

Acceptance Criteria:

Add an optional DataProcess pre-flight to the `supervised_fine_tune` method in the provider and expose it to the user via the provider config.