funding reference in metadata

[tilfischer]

Is your enhancement request related to a problem? Please describe.
Third-party funded research e.g. funded by the DFG requires researchers to provide funding reference. This is part of the DataCite DOI metadata e.g.:

"fundingReferences": [
{
"awardUri": "https://gepris.dfg.de/gepris/projekt/441958208",
"schemeUri": "https://ror.org/",
"awardTitle": "NFDI4Chem – Chemistry Consortium in the NFDI",
"funderName": "Deutsche Forschungsgemeinschaft",
"awardNumber": "441958208",
"funderIdentifier": "https://ror.org/018mejw64",
"funderIdentifierType": "ROR"
}
]

Describe the solution you'd like
User should be able to provide that metadata or add this metadata if they update the metadata (connected to #1105)

Best,
Tillmann