[5.x] Fast create user: password and roles

[didoda]

This provides an update to allow password and roles in fast create user form.

Password is handled through 2 fields (password and confirm password).

Roles are handled as checkboxes.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.80%. Comparing base (a0066b2) to head (cc83c81).
⚠️ Report is 41 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #1304   +/-   ##
=========================================
  Coverage     99.80%   99.80%           
- Complexity     1452     1456    +4     
=========================================
  Files           101      101           
  Lines          5663     5676   +13     
=========================================
+ Hits           5652     5665   +13     
  Misses           11       11           

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