Add "Radiocarbon Sample" to _physicalSpecimenMapper

[ekansa]

isamples_inabox/isamples_metadata/OpenContextTransformer.py

Line 134 in 36d07d6

_physicalSpecimenMapper = StringEqualityCategoryMapper(

Let's add "Radiocarbon Sample" here:

    _physicalSpecimenMapper = StringEqualityCategoryMapper(
        [
            "Sample, Collection, or Aggregation",
            "Object",
           "Radiocarbon Sample",
        ],
        "materialsample",
        vocabulary_mapper.specimen_type
    )

[dannymandel]

@datadavev is going to look at this one.