datacite: adding datacite-specific extra metadata

* attributes.metadataVersion
* attributes.schemaVersion
* attributes.version (source dependent values, follows suggestions in
https://schema.datacite.org/meta/kernel-4.3/doc/DataCite-MetadataKernel_v4.3.pdf#page=26,
but values vary)

Furthermore:

* attributes.types.resourceTypeGeneral
* attributes.types.resourceType

1 files changed, 33 insertions, 29 deletions

diff --git a/python/tests/files/datacite/datacite_result_01.json b/python/tests/files/datacite/datacite_result_01.json
index 46be2515..956357b8 100644
--- a/python/tests/files/datacite/datacite_result_01.json
+++ b/python/tests/files/datacite/datacite_result_01.json
@@ -1,32 +1,36 @@
 {
-    "extra": {
-        "datacite": {
-            "license": [
-                {
-                    "lang": "de",
-                    "rights": "Standard (Creative Commons - Namensnennung - Weitergabe unter gleichen Bedingungen) - http://www.ub.uni-heidelberg.de/helios/digi/nutzung/Welcome.html"
-                }
-            ]
-        }
-    },
-    "title": "Ferdinand Gaillard, [1]: n\u00e9 \u00e0 Paris le 16 janvier 1834, mort \u00e0 Paris le 19 janvier 1887",
-    "release_type": "article-journal",
-    "release_stage": "published",
-    "release_year": 1887,
-    "ext_ids": {
-        "doi": "10.11588/diglit.25558.39"
-    },
-    "publisher": "University Library Heidelberg",
-    "language": "fr",
-    "contribs": [
+  "extra": {
+    "datacite": {
+      "license": [
         {
-            "index": 0,
-            "raw_name": "G. Dargenty",
-            "given_name": "G.",
-            "surname": "Dargenty",
-            "role": "author"
+          "lang": "de",
+          "rights": "Standard (Creative Commons - Namensnennung - Weitergabe unter gleichen Bedingungen) - http://www.ub.uni-heidelberg.de/helios/digi/nutzung/Welcome.html"
         }
-    ],
-    "refs": [],
-    "abstracts": []
-}
\ No newline at end of file
+      ],
+      "metadataVersion": 4,
+      "resourceType": "DigitalisatDigital copy",
+      "resourceTypeGeneral": "Text",
+      "schemaVersion": "http://datacite.org/schema/kernel-4"
+    }
+  },
+  "title": "Ferdinand Gaillard, [1]: né à Paris le 16 janvier 1834, mort à Paris le 19 janvier 1887",
+  "release_type": "article-journal",
+  "release_stage": "published",
+  "release_year": 1887,
+  "ext_ids": {
+    "doi": "10.11588/diglit.25558.39"
+  },
+  "publisher": "University Library Heidelberg",
+  "language": "fr",
+  "contribs": [
+    {
+      "index": 0,
+      "raw_name": "G. Dargenty",
+      "given_name": "G.",
+      "surname": "Dargenty",
+      "role": "author"
+    }
+  ],
+  "refs": [],
+  "abstracts": []
+}