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, 26 insertions, 23 deletions

diff --git a/python/tests/files/datacite/datacite_result_06.json b/python/tests/files/datacite/datacite_result_06.json
index 61f2549d..18880100 100644
--- a/python/tests/files/datacite/datacite_result_06.json
+++ b/python/tests/files/datacite/datacite_result_06.json
@@ -1,26 +1,29 @@
 {
-    "extra": {
-        "datacite": {
-            "license": [
-                {
-                    "rights": "ETH-Bibliothek Z\u00fcrich, Graphische Sammlung / D 6220 / Public Domain Mark 1.0"
-                }
-            ]
-        }
-    },
-    "title": "Der Eifer (Sedulitas), Blatt 7 der Folge \"Die Tugenden\"",
-    "release_type": "article",
-    "release_year": 1590,
-    "ext_ids": {
-        "doi": "10.16903/ethz-grs-d_006220"
-    },
-    "contribs": [
+  "extra": {
+    "datacite": {
+      "license": [
         {
-            "index": 0,
-            "raw_name": "Crispijn De Passe (Der \u00c4ltere) (1564-1637)",
-            "role": "author"
+          "rights": "ETH-Bibliothek Zürich, Graphische Sammlung / D 6220 / Public Domain Mark 1.0"
         }
-    ],
-    "refs": [],
-    "abstracts": []
-}
\ No newline at end of file
+      ],
+      "metadataVersion": 1,
+      "resourceTypeGeneral": "InteractiveResource",
+      "schemaVersion": "http://datacite.org/schema/kernel-3"
+    }
+  },
+  "title": "Der Eifer (Sedulitas), Blatt 7 der Folge \"Die Tugenden\"",
+  "release_type": "article",
+  "release_year": 1590,
+  "ext_ids": {
+    "doi": "10.16903/ethz-grs-d_006220"
+  },
+  "contribs": [
+    {
+      "index": 0,
+      "raw_name": "Crispijn De Passe (Der Ältere) (1564-1637)",
+      "role": "author"
+    }
+  ],
+  "refs": [],
+  "abstracts": []
+}