Feature updates(Update Profile)

Update Profile

1. Student and Teacher can update their Username and Password but not Name.
2. Student and Teacher can't update same username or password. (ex. Present username: X, updated username should be anything other than X, could be x,X1,XY etc. Same goes for password. Duplication not allowd.
3. As this is a console application there are some limitation on consecutive updates.

Upcoming Feature

1. Student or Teacher have to re-login after 1 update to do another profile update.