Write a program that requests a password and verifies that it is a valid
password. To be valid the password must be at least 6 characters long and
contain at least one digit.

Your program should:
1. Determine whether the password is valid. If it is not, a message telling
the user what is wrong should be output
2. If it is valid, the program should thank the user for entering a valid
password
Once your program executes correctly, upload your file. Make sure
your name is in a comment.

Sample Output  (inputs in bold)
Please enter a password: pass6
Passwords must be at least 6 characters long
Please enter a password: TarrantNW
Passwords must include at least one digit (1-9)
Please enter a password: Tccd03
Thank you, that is a valid password