Added / Changed

Two factor authentication:
- Implemented reading from database and checking if user valid ID
- Added pseudocode for writing ID to database
- Added functionality for checking if user will have to login with
Android device

For getting persistent data VM:
- Edited HTML for getting all data in database
- Edited DAO for getting all data in database
- Edited Serialiaser for getting all data in database
- Added some extra checks and responses with Velocity
divided code into services
- Refactored much code
- Added extra bootstrap table styles