UNOMI-410 : add patch template (#231)

diff --git a/persistence-elasticsearch/core/src/main/resources/META-INF/cxs/mappings/patch.json b/persistence-elasticsearch/core/src/main/resources/META-INF/cxs/mappings/patch.json
new file mode 100644
index 0000000..b18dfc2
--- /dev/null
+++ b/persistence-elasticsearch/core/src/main/resources/META-INF/cxs/mappings/patch.json
@@ -0,0 +1,37 @@
+{
+  "dynamic_templates": [
+    {
+      "all": {
+        "match": "*",
+        "match_mapping_type": "string",
+        "mapping": {
+          "type": "text",
+          "analyzer": "folding",
+          "fields": {
+            "keyword": {
+              "type": "keyword",
+              "ignore_above": 256
+            }
+          }
+        }
+      }
+    }
+  ],
+  "properties": {
+    "patchedItemId": {
+      "type": "text"
+    },
+    "patchedItemType": {
+      "type": "text"
+    },
+    "operation": {
+      "type": "text"
+    },
+    "data": {
+      "type": "object"
+    },
+    "lastApplication": {
+      "type": "date"
+    }
+  }
+}