feat: support runtime config

Author: ricardogobbosouza

lib/plugin.js

@@ -38,7 +38,13 @@ export default (ctx, inject) => {
     ...getHeaders(ctx)
   }
 
-  const echo = new Echo(options)
+  // runtimeConfig
+  const runtimeConfig = ctx.$config && ctx.$config.echo || {}
+
+  const echo = new Echo({
+    ...options,
+    ...runtimeConfig
+  })
 
   <% if (options.authModule) { %>
   if (ctx.app.$auth) {