Change maximum password length to 64 symbols

[OlegKlimenko]

Web:

1. Model migration
2. Registration:
   • Front-end validation rules
   • Front-end validation validation messages
   • Backend form validation
3. Login
   • Front-end validation rules
   • Backend form validation
4. Change password (profile page)
   • Front-end validation rules
   • Backend form validation

API:

1. Registration:
   • Form validation
2. Login:
   • Form Validation
3. Change password:
   • Form Validation

[OlegKlimenko]

Change maximum password length to 64 symbols