Request: new field for synonym permutations

Nobody has claimed this yet.

We have been implementing a feature to allow synonym permutation support in dosdp tools - controlled by a command line parameter. So when someone says: "permutate" ALL textual features are permutated against exact synonyms. That, of course, is not ideal (think of definitions). So what I want to propose is a new flag "permutate-synonyms" that can take values corresponding to synonym type fields (a list). Usually, that would be "exact synonyms", but to keep it flexible it's probably good to allow arbitrary properties like alternative term from IAO, skos preferred label etc. I don't know if we should use the property fields for this or just add property iris.

Start by tracing the existing `permutate` command-line option in the dosdp tools and how synonym properties are represented. Define how a new `permutate-synonyms` option should accept a list of synonym fields, including whether it uses property fields or property IRIs. Done means the design is agreed and the option can restrict permutation to the selected synonym types.

Written by the indexing model from the issue text.