Enable external references in applicationComponents and infrastructuralComponents array fields

[andrea-gioia]

Fields applicationComponents and infrastructuralComponents of Internal Component Objects MUST accept as valid array items also ReferenceObject in order to allow developers to externalize the definition of an application component or of an infrastructural component in a dedicated file like shown in the following example...

"internalComponents": {
        "applicationComponents": [
            {
               "$ref": "https://github.com/opendatamesh-initiative/cd-ingestion-app/blob/main/examples/tripexecution/apps/cdc-ingestion-app.json"
            }, {
               "$ref": "https://github.com/opendatamesh-initiative/cd-ingestion-app/blob/main/examples/tripexecution/apps/event-processor-app.json" 
            }, {
               "$ref": "https://github.com/opendatamesh-initiative/cd-ingestion-app/blob/main/examples/tripexecution/apps/db-sink-connector--app.json" 
            }
        ],
        "infrastructuralComponents": [{
            {
                "$ref": "https://github.com/opendatamesh-initiative/cd-ingestion-app/blob/main/examples/tripexecution/infra/event-store.json"
            }, {
               "$ref": "https://github.com/opendatamesh-initiative/cd-ingestion-app/blob/main/examples/tripexecution/infra/state-store.json" 
            }
        }]
    }

[michelelauni]

Implemented in e5daaa0