First working version that let you download pass on http request

Added config.json for paths and credentials configuration.

package.json

@@ -9,6 +9,8 @@
   "author": "Alexander Patrick Cerutti",
   "license": "ISC",
   "dependencies": {
+    "archiver": "^2.1.1",
+    "async": "^2.6.0",
     "express": "^4.16.3"
   }
 }