fix(cli): add esnext.asynciterable to lib for typescript

Author: raymondfeng

packages/cli/generators/project/templates/tsconfig.json.ejs

@@ -9,7 +9,7 @@
     "noImplicitAny": true,
     "strictNullChecks": true,
 
-    "lib": ["es2018", "dom"],
+    "lib": ["es2018", "dom", "esnext.asynciterable"],
     "module": "commonjs",
     "moduleResolution": "node",
     "target": "es2017",