[AID] Redesigning Semantic References for TD -> AID

[egekorkan]

Looking into how the semantic annotations are currently translated, we need to rethink due to the following points:

• Semantic annotations should not be converted like key-value pairs. Currently, something like "eclass:hasQuantity": "eclass14-0:0173-1-Z4-BAJ272-003" becomes {"idShort": "unit", "valueType": "xs:string", "value": "eclass14-0:0173-1-05-AAA153-004", "modelType": "Property"}. It should be done via semanticId, like how it is done for the WoT terms.
• IDTA prefers the usage of conceptDescriptions to store internal and even external semantic references. That means that all our semantic references need to point to a concept description in the root of the AAS. Implementing that requires rethinking since we cannot do that if we generate only the submodel.

I would propose starting with the first point already. The second one can be done after a thorough discussion.

[wiresio]

https://github.com/wiresio/domus-tdd-api-plugin-aid does it like this:

{
    "modelType": "Property",
    "semanticId": {
        "keys": [
            {
                "type": "GlobalReference",
                "value": "https://eclass-cdp.com/rdf/v1/eclass/hasQuantity"
            }
        ],
        "type": "ExternalReference"
    },
    "value": "eclass14-0:0173-1-Z4-BAJ267-004",
    "valueType": "xs:string",
    "idShort": "hasQuantity"
}