Enable incremental creation of AAS resources

[sebbader-sap]

Scenario:

1. Client initially creates a resource, e.g. a Submodel without any SubmodelElements
2. Clients adds SubmodelElements one by one
3. Client sets flag to "done", server makes the Submodel available to all others

[aorzelskiGH]

An example of the ZVEI DPP40 showcase is, that a complete AAS is created.
This inlcudes submodels Nameplate, HandoverDocumentation, TechnicalData and Product Carbon Footprint.

[mjacoby]

This sounds like a useful feature, however the proposed process seems a bit strange and probably to transaction-like and it might even require the server to keep a state between requests what is against REST principles.

I would recommend having a look at established and proven solutions like Batch Processing (e.g. in OData or SensorThings API).

[BirgitBoss]

Decision 2024-03-05 TF API
postpone, not for V3.1