add test:integration npm script

Author: trxcllnt

js/package.json

@@ -12,6 +12,7 @@
     "clean": "gulp clean",
     "debug": "gulp debug",
     "perf": "node ./perf/index.js",
+    "test:integration": "node ./bin/integration.js --mode validate",
     "create:perfdata": "python ./test/data/tables/generate.py ./test/data/tables/tracks.arrow",
     "release": "./npm-release.sh",
     "clean:all": "run-p clean clean:testdata",