Implement KAM workflow

[SanderNielen]

The Key account manager (KAM) user needs a workflow that differs on some aspects from the Process developer. Therefore, a separate workflow is needed, or a combined one that distinguishes the user type.

The workflow needs:

• An API endpoint for sending DSS requests
• A serializer to process all data transferred data
• Initiation of the KAM-relevant KPIs and groups
• Connection to the DPP generator, with access to LCA results before the actual DPPs are generated
• Calculations to derive other KPIs
• A button to generate DPPs for a series of product items