Sandbox creation endpoint for use with tutorials

To use locally, zip entire directory and install service on system database.

Currently, endpoint is accessible via https://a0434a558688.arangodb.cloud:8529/_db/_system/tutorialDB/tutorialDB

/tutorialDB

• Optionally Accepts:
  • dbName
  • username
  • password
  • email
  • tutorialName
• Returns
  • dbName
  • username
  • password
  • hostname
  • port
• Creates tutorialInstances collection that has all existing username(not password) and database information.
• Deletes databases every 4 hours, checks once an hour. These values can be updated in expire.js or setup.js, respectively.
• When a database is dropped some information, including email is transferred to expiredtutorialInstances collection.