Feature: #106752 - Add password hashing option to SaveToDatabase finisher

Description

This change introduces a new hashed option for the SaveToDatabase finisher in EXT:form. When saving data to a table, setting hashed: true on a field causes the value to be hashed using the default FE password hashing mechanism before storage.

This ensures secure handling of passwords and avoids saving them in plain text.

Example usage in form definition:

- identifier: SaveToDatabase
  options:
    table: 'fe_users'
    elements:
      password:
        mapOnDatabaseColumn: 'password'
        hashed: true

Impact

Integrators can now store passwords securely out of the box with EXT:form.