Adjust transformation of publication statement for RDA records

[acka47]

From hbz/lobid#161 (comment). Publication place, publisher and publication date are in 419.

Snippet from http://lobid.org/resource/HT018779822:

<datafield ind2="1" ind1="-" tag="419">
            <subfield code="a">New York</subfield>
            <subfield code="b">Routledge</subfield>
            <subfield code="c">2014</subfield>
</datafield>

Snippet from http://lobid.org/resource/HT018772912:

          <datafield ind2="1" ind1="-" tag="419">
            <subfield code="a">Sundern</subfield>
            <subfield code="b">Baulmann Leuchten GmbH</subfield>
            <subfield code="c">2011-</subfield>
            <subfield code="A">3</subfield>
          </datafield>

Also, publicationStatement has the wrong value in RDA records (only the date), for example http://lobid.org/resource/HT018779822:

{
  "@graph" : [ {
    "@id" : "http://lobid.org/resource/HT018779822",
    "@type" : [ "http://purl.org/dc/terms/BibliographicResource", "http://purl.org/ontology/bibo/Book" ],
    "publicationStatement" : "2014"
    } ]
}

[dr0i]

Deployed to staging.

[acka47]

+1 for publicationStatement. What we also need to add are fields publisher and placeOfPublication. For http://lobid.org/resource/HT018779822 the result should look like this (snippet):

{
    "@id" : "http://lobid.org/resource/HT018779822",
    "issued" : "2014",
    "publicationStatement" : "New York; Routledge; 2014",
    "publisher": "Routledge",
    "placeOfPublication": "New York"
}

[dr0i]

Deployed to staging.

[acka47]

+1

[dr0i]

Deployed to production, closing.