feat(Field): support validator in rules

src/form/demo/index.vue

@@ -1,18 +1,21 @@
 <template>
   <demo-section>
     <basic-usage />
+    <validate-rules />
     <field-type />
   </demo-section>
 </template>
 
 <script>
 import BasicUsage from './BasicUsage';
+import ValidateRules from './ValidateRules';
 import FieldType from './FieldType';
 
 export default {
   components: {
     BasicUsage,
     FieldType,
+    ValidateRules,
   },
 };
 </script>