Changed all examples to new generate signature;

Added internal package.json for examples

examples/package.json

@@ -0,0 +1,10 @@
+{
+  "name": "examples",
+  "version": "0.0.0",
+  "description": "Passkit-generator examples",
+  "author": "Alexander P. Cerutti <cerutti.alexander@gmail.com>",
+  "license": "ISC",
+  "dependencies": {
+    "express": "^4.17.1"
+  }
+}