Solving problem by using getpass for username too

Signed-off-by: Vivek Rai <vivekraiiitkgp@gmail.com>
Now handles username, password input

Signed-off-by: Vivek Rai <vivekraiiitkgp@gmail.com>
Added a Banner, updated a user note

Signed-off-by: Vivek Rai <vivekraiiitkgp@gmail.com>