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, 21 insertions, 17 deletions

diff --git a/python/tests/files/datacite/datacite_result_03.json b/python/tests/files/datacite/datacite_result_03.json
index e8367e8f..41d8d4cd 100644
--- a/python/tests/files/datacite/datacite_result_03.json
+++ b/python/tests/files/datacite/datacite_result_03.json
@@ -1,19 +1,23 @@
 {
-    "extra": {"datacite": {}},
-    "title": "midterm ah30903",
-    "release_type": "article",
-    "release_year": 2016,
-    "ext_ids": {
-        "doi": "10.13140/rg.2.2.30434.53446"
-    },
-    "language": "ms",
-    "contribs": [
-        {
-            "index": 0,
-            "raw_name": "Mastura Yahya",
-            "role": "author"
-        }
-    ],
-    "refs": [],
-    "abstracts": []
+  "extra": {
+    "datacite": {
+      "schemaVersion": "http://datacite.org/schema/kernel-3"
+    }
+  },
+  "title": "midterm ah30903",
+  "release_type": "article",
+  "release_year": 2016,
+  "ext_ids": {
+    "doi": "10.13140/rg.2.2.30434.53446"
+  },
+  "language": "ms",
+  "contribs": [
+    {
+      "index": 0,
+      "raw_name": "Mastura Yahya",
+      "role": "author"
+    }
+  ],
+  "refs": [],
+  "abstracts": []
 }