implement a detail-view redirect

[csae8092]

entity with id 123 is merged into entity 321; but ID 123 is already referenced somewhere; therefore a link to the entity GUI detail view e.g. https://pmb.acdh.oeaw.ac.at/apis/entities/entity/work/123/detail returns a 404 but it would be nice to implement a redirect to https://pmb.acdh.oeaw.ac.at/apis/entities/entity/work/321/detail which should be possible as the 'old' ID is kept in one of the new entities URIS

[zozlak]

It would be great also to:

• make the redirect work for https://pmb-service.acdh-dev.oeaw.ac.at/arche/{oldId}
• report the old id among acdh:hasIdentifier in https://pmb-service.acdh-dev.oeaw.ac.at/arche/{currentId}

[csae8092]

It would be great also to:

* make the redirect work for `https://pmb-service.acdh-dev.oeaw.ac.at/arche/{oldId}`

* report the old id among `acdh:hasIdentifier` in `https://pmb-service.acdh-dev.oeaw.ac.at/arche/{currentId}`

see https://github.com/arthur-schnitzler/pmb-service/issues/28

[zozlak]

Thanks!