Other: prepare 1.x maintenance branch

Author: tuckbick

package.json

@@ -47,7 +47,8 @@
     "url": "https://github.com/expediagroup/service-client.git"
   },
   "publishConfig": {
-    "registry": "https://registry.npmjs.org"
+    "registry": "https://registry.npmjs.org",
+    "tag": "1.x"
   },
   "bugs": {
     "url": "https://github.com/expediagroup/service-client/issues"