Add patch npm install for CI

Author: jhen0409

appveyor.yml

@@ -18,6 +18,7 @@ install:
   - npm install
   - git clone https://github.com/jhen0409/react-devtools.git node_modules\react-devtools
   - rm node_modules\react-devtools\.babelrc
+  - cd patch && npm install && cd ..
 
 test_script:
   - node --version

scripts/travis-build.sh

@@ -17,6 +17,7 @@ npm --version
 npm install
 rm -rf node_modules/react-devtools
 npm run fetch-rdt
+cd patch && npm install && cd ..
 npm run lint
 npm run build
 npm test