Create a user

def create_user(app, appbuilder, role, username, firstname, lastname, email, password):
    """
        Create a user
    """
    _appbuilder = import_application(app, appbuilder)
    role_object = _appbuilder.sm.find_role(role)
    user = _appbuilder.sm.add_user(
        username, firstname, lastname, email, role_object, password
    )
    if user:
        click.echo(click.style("User {0} created.".format(username), fg="green"))
    else:
        click.echo(click.style("Error! No user created", fg="red"))