Add reference database names for IDNOs in the Registers (Biblissima, Kaiserhof, IdRef)
Summary
Add reference database names for the registers (IDNO columns)
- Biblissima (for for psn:textgrid:3vvcf) https://data.biblissima.fr/w/Item:Q25907
- Kaiserhof (for psn:textgrid:3qwgx) https://kaiserhof.geschichte.lmu.de/16947
- IdRef (for plc:textgrid:3qkqd) https://www.idref.fr/096135409
we need to add the label "Biblissima" for URLS based on : https://data.biblissima.fr/ and https://kaiserhof.geschichte.lmu.de/