Add restoration functionality for stored object versions

Introduce a service to restore stored object versions along with relevant tests and an API endpoint. This includes database migrations for version relationships, enhancing stored object version tracking.

src/Bundle/ChillDocStoreBundle/chill.api.specs.yaml

@@ -130,3 +130,25 @@ paths:
                     description: "Unauthorized"
                 404:
                     description: "Not found"
+
+    /1.0/doc-store/stored-object/restore-from-version/{id}:
+        post:
+            tags:
+                - storedobject
+            summary: Restore an old version of a stored object
+            parameters:
+                - in: path
+                  name: id
+                  required: true
+                  allowEmptyValue: false
+                  description: The id of the stored object version
+                  schema:
+                      type: integer
+            responses:
+                200:
+                    description: "OK"
+                    content:
+                        application/json:
+                            schema:
+                                type: object
+