documents: add identifiedBy subfield on some fields

[Garfield-fr]

• Adds identifiedBy on relationships, series statement and work access point fields.
• Closes Add identifiers fields for Document in relation (when label) and Series statement #2275.
• Closes Document editor: subfield "identifier" missing in Work access point field #2388.

Co-Authored-by: Bertrand Zuchuat [email protected]

Code review check list

• Commit message template compliance.
• Commit message without typos.
• File names.
• Functions names.
• Functions docstrings.
• Unnecessary commited files?
• Cypress tests successful?

[iGormilhit]

Commit message title: document: → documents:.

[iGormilhit]

Commit message approved.

[JoelleDosimont]

• [not bloking] If possible, in the Document in relation and Series statement (Add identifiers fields for Document in relation (when label) and Series statement #2275), the identifiers by default can be set on ISSN. I don't know if is possible, as the default in the document is ISBN ?

[Garfield-fr]

* [ ]  [not bloking] If possible, in the Document in relation and Series statement ([Add identifiers fields for Document in relation (when label) and Series statement #2275](https://github.com/rero/rero-ils/issues/2275)), the identifiers by default can be set on ISSN. I don't know if is possible, as the default in the document is ISBN ?

This is not possible, because the configuration is global to all fields.