Cleanup "API Definition" for Adapters

[mikaelkalt]

Currently it seems that there are some very specific fields in our classes which are used between the adapter and the node.

The following fields should be discussed:

• internalReference
• internalPersonId
• techID (currently removed since not in use)

The goal would be to define a clean API which does not have anything VE-specific (like e.g. PAKT).
Would it be sufficient to identify a match by the following three fields:

• retirementFundUID
• OASI Number
• commencement / termination date

Or should we provide a single field that identifies on record.

How ever this should be discussed in the team.