[api] Add clone function to utils

api/index.ts

@@ -5,3 +5,4 @@ export * from './src/stores/';
 export * from './src/utils/datetime';
 export * from './src/utils/permission';
 export * from './src/utils/validators';
+export * from './src/utils/misc';

api/src/utils/misc.ts

@@ -0,0 +1,3 @@
+export function clone<T>(o: T): T {
+  return <T>JSON.parse(JSON.stringify(o));
+}