add sockopt to dockodemo

Author: alireza0

web/html/xui/form/protocol/dokodemo.html

@@ -30,4 +30,8 @@
         <a-switch v-model="inbound.settings.followRedirect"></a-switch>
     </a-form-item>
 </a-form>
+<!-- sockopt -->
+<template>
+    {{template "form/streamSockopt"}}
+</template>
 {{end}}