add build task

Author: christian-bromann

.npmignore

@@ -0,0 +1,10 @@
+.assets
+.github
+coverage
+src
+tests
+
+/*.js
+*.editorconfig
+*.gitignore
+*.eslintignore

package.json

@@ -4,6 +4,9 @@
   "description": "A Node.js library that provides Chrome DevTools trace models to parse arbitrary trace logs.",
   "main": "./build/index.js",
   "scripts": {
+    "build": "run-s clean compile",
+    "clean": "rm -rf build coverage",
+    "compile": "NODE_ENV=production tsc",
     "prepublishOnly": "npm prune && run-s build",
     "release": "npm run release:patch",
     "release:patch": "np patch",