Adapt main script for setting up OSCM in Azure to include sample data related scripts

[kowalczyka]

Summary Main script https://github.com/servicecatalog/oscm-dockerbuild/blob/Task%23321_Add_scripts_for_setup_with_OIDC/oscm-scripts/oscm-on-azure-vm/app-registration/start.sh must be updated with sample data scripts.

Details Sample data scripts contain operations for registering new users, new groups and assigning users to the groups.

Acceptance criteria

• [ ] script executes successfully and set up the whole necessary configuration

Additional context N/A