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, 46 insertions, 41 deletions

diff --git a/python/tests/files/datacite/datacite_result_12.json b/python/tests/files/datacite/datacite_result_12.json
index c3a9071c..5e2a6281 100644
--- a/python/tests/files/datacite/datacite_result_12.json
+++ b/python/tests/files/datacite/datacite_result_12.json
@@ -1,44 +1,49 @@
 {
-    "extra": {"datacite": {}, "month": 6},
-    "title": "Anthropometric and Physiological Profile of Mixed Martial Art Athletes: A Brief Review",
-    "release_type": "article-journal",
-    "release_stage": "published",
-    "release_date": "2019-06-14",
-    "release_year": 2019,
-    "ext_ids": {
-        "doi": "10.5167/uzh-171449"
+  "extra": {
+    "datacite": {
+      "resourceTypeGeneral": "Text"
     },
-    "publisher": "MDPI Publishing",
-    "contribs": [
-        {
-            "index": 0,
-            "raw_name": "Charalampos Spanias",
-            "given_name": "Charalampos",
-            "surname": "Spanias",
-            "role": "author"
-        },
-        {
-            "index": 1,
-            "raw_name": "Pantelis T Nikolaidis",
-            "given_name": "Pantelis T",
-            "surname": "Nikolaidis",
-            "role": "author"
-        },
-        {
-            "index": 2,
-            "raw_name": "Thomas Rosemann",
-            "given_name": "Thomas",
-            "surname": "Rosemann",
-            "role": "author"
-        },
-        {
-            "index": 3,
-            "raw_name": "Beat Knechtle",
-            "given_name": "Beat",
-            "surname": "Knechtle",
-            "role": "author"
-        }
-    ],
-    "refs": [],
-    "abstracts": []
+    "month": 6
+  },
+  "title": "Anthropometric and Physiological Profile of Mixed Martial Art Athletes: A Brief Review",
+  "release_type": "article-journal",
+  "release_stage": "published",
+  "release_date": "2019-06-14",
+  "release_year": 2019,
+  "ext_ids": {
+    "doi": "10.5167/uzh-171449"
+  },
+  "publisher": "MDPI Publishing",
+  "contribs": [
+    {
+      "index": 0,
+      "raw_name": "Charalampos Spanias",
+      "given_name": "Charalampos",
+      "surname": "Spanias",
+      "role": "author"
+    },
+    {
+      "index": 1,
+      "raw_name": "Pantelis T Nikolaidis",
+      "given_name": "Pantelis T",
+      "surname": "Nikolaidis",
+      "role": "author"
+    },
+    {
+      "index": 2,
+      "raw_name": "Thomas Rosemann",
+      "given_name": "Thomas",
+      "surname": "Rosemann",
+      "role": "author"
+    },
+    {
+      "index": 3,
+      "raw_name": "Beat Knechtle",
+      "given_name": "Beat",
+      "surname": "Knechtle",
+      "role": "author"
+    }
+  ],
+  "refs": [],
+  "abstracts": []
 }