This PR tries to bring the endpoint implementations in sync with the api.yaml. For arriving at a working solution I adjusted both the actual implementation and the OpenAPI spec. In particular I
adjusted the corpus info implementation
adjusted/implemented the corpus and text entities endpoints to the spec
added a dedicated TEI endpoint for single texts
adjusted the text metrics
with regard to single text metadata
simplified the author information according to what data is actually available in the current corpora (e.g. single ref property, simple name property)
This PR tries to bring the endpoint implementations in sync with the api.yaml. For arriving at a working solution I adjusted both the actual implementation and the OpenAPI spec. In particular I
datespropertycorpusUrlandentitiesUrlpropertiesResolve #13