WIP: TENE-34 Dostosowanie harvester-managera

In this MR we customized record-processor to use newly added system of per source mappings.

We also keep idea of file loaded mappings, as some parts of processing are not moved into DB driven storage of mappings. This means XSLTTransformer::transform accept as third argument both Source object and String represented path. If Source was provided related mapping with all includes will be added. Otherwise transformer will try to load resources from files.

As entire topology is not active yet, code was not tested towards integration of other components.

MERGE AFTER TENE-34