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, 86 insertions, 82 deletions

diff --git a/python/tests/files/datacite/datacite_result_00.json b/python/tests/files/datacite/datacite_result_00.json
index e76aa391..28da5397 100644
--- a/python/tests/files/datacite/datacite_result_00.json
+++ b/python/tests/files/datacite/datacite_result_00.json
@@ -1,88 +1,92 @@
 {
-    "extra": {
-        "container_name": "Journal of Chemical Crystallography",
-        "datacite": {
-            "license": [
-                {
-                    "rightsUri": "http://www.springer.com/tdm"
-                }
-            ],
-            "relations": [
-                {
-                    "relationType": "IsPartOf",
-                    "relatedIdentifier": "1074-1542",
-                    "resourceTypeGeneral": "Collection",
-                    "relatedIdentifierType": "ISSN"
-                }
-            ]
-        },
-        "month": 5
-    },
-    "title": "Synthesis and Crystal Structure of a Compound with Two Conformational Isomers: N-(2-methylbenzoyl)-N\u2032-(4-nitrophenyl)thiourea",
-    "release_type": "article-journal",
-    "release_stage": "published",
-    "release_date": "2019-05-31",
-    "release_year": 2019,
-    "ext_ids": {
-        "doi": "10.1007/s10870-008-9413-z"
-    },
-    "volume": "38",
-    "issue": "12",
-    "pages": "927-930",
-    "publisher": "Springer Science and Business Media LLC",
-    "contribs": [
+  "extra": {
+    "container_name": "Journal of Chemical Crystallography",
+    "datacite": {
+      "license": [
         {
-            "index": 0,
-            "raw_name": "Qian-Jin Li",
-            "given_name": "Qian-Jin",
-            "surname": "Li",
-            "role": "author"
-        },
-        {
-            "index": 1,
-            "raw_name": "Chun-Long Yang",
-            "given_name": "Chun-Long",
-            "surname": "Yang",
-            "role": "author"
+          "rightsUri": "http://www.springer.com/tdm"
         }
-    ],
-    "refs": [
-        {
-            "index": 0,
-            "extra": {
-                "doi": "10.1016/j.bmcl.2005.09.033"
-            }
-        },
-        {
-            "index": 1,
-            "extra": {
-                "doi": "10.1016/s0022-1139(02)00330-5"
-            }
-        },
-        {
-            "index": 2,
-            "extra": {
-                "doi": "10.1016/s0010-8545(01)00337-x"
-            }
-        },
-        {
-            "index": 3,
-            "extra": {
-                "doi": "10.1016/j.tetlet.2005.06.135"
-            }
-        },
-        {
-            "index": 4,
-            "extra": {
-                "doi": "10.1039/p298700000s1"
-            }
-        },
+      ],
+      "relations": [
         {
-            "index": 5,
-            "extra": {
-                "doi": "10.1002/anie.199515551"
-            }
+          "relationType": "IsPartOf",
+          "relatedIdentifier": "1074-1542",
+          "resourceTypeGeneral": "Collection",
+          "relatedIdentifierType": "ISSN"
         }
-    ],
-    "abstracts": []
+      ],
+      "resourceType": "JournalArticle",
+      "resourceTypeGeneral": "Text",
+      "schemaVersion": "http://datacite.org/schema/kernel-4",
+      "metadataVersion": 1
+    },
+    "month": 5
+  },
+  "title": "Synthesis and Crystal Structure of a Compound with Two Conformational Isomers: N-(2-methylbenzoyl)-N′-(4-nitrophenyl)thiourea",
+  "release_type": "article-journal",
+  "release_stage": "published",
+  "release_date": "2019-05-31",
+  "release_year": 2019,
+  "ext_ids": {
+    "doi": "10.1007/s10870-008-9413-z"
+  },
+  "volume": "38",
+  "issue": "12",
+  "pages": "927-930",
+  "publisher": "Springer Science and Business Media LLC",
+  "contribs": [
+    {
+      "index": 0,
+      "raw_name": "Qian-Jin Li",
+      "given_name": "Qian-Jin",
+      "surname": "Li",
+      "role": "author"
+    },
+    {
+      "index": 1,
+      "raw_name": "Chun-Long Yang",
+      "given_name": "Chun-Long",
+      "surname": "Yang",
+      "role": "author"
+    }
+  ],
+  "refs": [
+    {
+      "index": 0,
+      "extra": {
+        "doi": "10.1016/j.bmcl.2005.09.033"
+      }
+    },
+    {
+      "index": 1,
+      "extra": {
+        "doi": "10.1016/s0022-1139(02)00330-5"
+      }
+    },
+    {
+      "index": 2,
+      "extra": {
+        "doi": "10.1016/s0010-8545(01)00337-x"
+      }
+    },
+    {
+      "index": 3,
+      "extra": {
+        "doi": "10.1016/j.tetlet.2005.06.135"
+      }
+    },
+    {
+      "index": 4,
+      "extra": {
+        "doi": "10.1039/p298700000s1"
+      }
+    },
+    {
+      "index": 5,
+      "extra": {
+        "doi": "10.1002/anie.199515551"
+      }
+    }
+  ],
+  "abstracts": []
 }