add node modules to repo

node_modules/electron-packager/test/ci/appveyor.yml

@@ -0,0 +1,34 @@
+platform:
+- x86
+- x64
+environment:
+  matrix:
+  - nodejs_version: "4"
+  - nodejs_version: "6"
+  - nodejs_version: "8"
+  - nodejs_version: "9"
+matrix:
+  allow_failures:
+  - nodejs_version: "9"
+cache:
+- 'node_modules'
+- '%USERPROFILE%\.electron'
+branches:
+  only:
+  - master
+
+install:
+- ps: Install-Product node $env:nodejs_version $env:platform
+- npm install -g npm@4
+- set PATH=%APPDATA%\npm;%PATH%
+- npm install
+- npm update
+
+test_script:
+- node --version
+- npm --version
+- node test/ci/_before_script.js
+- npm test
+- npm run codecov
+
+build: off