Add an example that reuses a step definition

reuse/package.json

@@ -0,0 +1,19 @@
+{
+  "name": "reuse",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "cucumber-js --require-module '@babel/register'"
+  },
+  "author": "Eugen Wissner <belka@caraus.de>",
+  "license": "MPL-2.0",
+  "devDependencies": {
+    "@babel/core": "^7.2.2",
+    "@babel/preset-env": "^7.2.3",
+    "@babel/register": "^7.0.0",
+    "babel-loader": "^8.0.4",
+    "chai": "^4.2.0",
+    "cucumber": "^5.0.3"
+  }
+}