Change data init from python to admin cli

We should change data init from python script to our own CLI, we should also use approach and data like in \Ferrum\tools\create_wissance_demo_users.ps1 with SUCH values like WissanceFerrumDemo as Realm name, except user should not be Michael Ushakov, we have to set 2 users instead of umv:

1. John Doe (jodo as preffered_username)
2. Jane Doe (jado as preffered_username)