Resolve "Add support to SmartDataContext API"

Related to #37 (closed)

docker/mongo/create-user.js

+db.createUser(
+  {
+      user: process.env.MONGO_USERNAME,
+      pwd: process.env.MONGO_PASSWORD,
+      roles: [
+          {
+              role: "readWrite",
+              db: process.env.MONGO_DATABASE
+          }
+      ]
+  }
+);
+db.createCollection("sample"); 
\ No newline at end of file