Add rename folder api support

Author: adimiz1

cloudinary-core/src/main/java/com/cloudinary/Api.java

@@ -790,6 +790,18 @@ public ApiResponse analyze(String inputType, String analysisType, String uri, Ma
         return callApi(HttpMethod.POST, url, params, options);
     }
 
+    public ApiResponse renameFolder(String path, String toPath, Map options) throws Exception {
+        if (options == null || options.isEmpty()) options = ObjectUtils.asMap();
+        List<String> url = Arrays.asList("folder_operations", "rename");
+
+        final Map params = new HashMap();
+        params.put("path", path);
+        params.put("to_path", toPath);
+
+        return callApi(HttpMethod.PUT, url, params, options);
+
+    }
+
     private Map<String, ?> extractParams(Map options, List<String> keys) {
         Map<String, Object> result = new HashMap<String, Object>();
         for (String key : keys) {

cloudinary-test-common/src/main/java/com/cloudinary/test/AbstractApiTest.java

@@ -1267,4 +1267,15 @@ public void testVisualSearch() {
         Util.processWriteParameters(options, params);
         assertEquals(true, params.get("visual_search"));
     }
+
+    @Test
+    @Ignore("Skip test till FD is enabled for test accounts")
+    public void testRenameFolder() throws Exception {
+        Map result = api.createFolder("apTestCreateFolder", null);
+        assertNotNull(result);
+
+        String folderName = (String) result.get("path");
+        Map response = api.renameFolder(folderName, "newFolderName", ObjectUtils.emptyMap());
+        assertNotNull(response);
+    }
 }