Pool: Upsert Business Partners from Cleaning Result

[nicoprow]

In the new orchestration logic the BPDM Pool should poll the BPDM Orchestrator for new cleaning requests that need to be processed. The Pool processes the cleaning requests first by upserting its own business partners via the attached L/S/A cleaning result. The cleaning result may have BPN request identifiers which the Pool needs to convert to BPNs with the following logic:

• If the BPN request identifier is unknown create a new business partner, generate a new BPN and associate the unknown identifier with the generated BPN. For the L/S/A hierarchy:If there is a site attach the address to site, otherwise attach the address to the legal entity.
• If the BPN request identifier is known update the business partner with the associated BPN. Fow now, updates do not change the L/S/A hierarchy

By this, the Pool upserts business partners from a given cleaning result.
In a final step, the Pool should replace all BPN request identifiers with the associated BPNs in the cleaning result and send that cleaning result to the orchestrator for further processing.

###Tasks

• Create polling logic for reserving cleaning task for step "BpnProcessing" from Orchestrator (see Orchestrator API: Cleaning Steps Endpoints #458)
• Create BPN upsert logic based on BPN request identifier
• Create upsert logic from L/S/A business partners in cleaning tasks
• Create cleaning result and post results back for step "BpnProcessing" to Orchestrator (see Orchestrator API: Cleaning Steps Endpoints #458)

Dependencies:
#435
#434