chore: Run tests on windows

Author: Jan Krems

.gitignore

@@ -1,3 +1,4 @@
 node_modules/
 npm-debug.log
 /tmp
+/.vs

appveyor.yml

@@ -0,0 +1,13 @@
+environment:
+  nodejs_version: "6"
+
+install:
+- ps: Install-Product node $env:nodejs_version
+- npm install
+
+test_script:
+- node --version
+- npm --version
+- npm test
+
+build: off

package.json

@@ -15,7 +15,7 @@
   },
   "scripts": {
     "pretest": "eslint --rulesdir=tools/eslint-rules lib test",
-    "test": "tap 'test/**/*.test.js'",
+    "test": "tap \"test/**/*.test.js\"",
     "posttest": "nlm verify"
   },
   "nlm": {