fix issue #594 for roles with blank spaces in the name

[adonisgarciac]

What does this PR do?

Fix issue #594. Role name has blank spaces for role types:

"project_admin"
"inventory_admin"
"credential_admin"
"workflow_admin"
"notification_admin"
"job_template_admin"
"execution_environment_admin"

It can be checked going to the API and look for some role with one of this type.

This role name is setting as role in the plugin controller_object_diff.py:

item.update({"role": item["name"].lower()})

And this value is not valid so we need no change the blank spaces for underscores:

item.update({"role": item["name"].lower().replace(" ", "_")})

How should this be tested?

>>> my_string = "This is a sample String"
>>> my_string = my_string.lower().replace(" ", "_")
>>> print(my_string)
this_is_a_sample_string

Is there a relevant Issue open for this?

#594

[adonisgarciac]

I can't add reviewers but I'd like @ivarmu can check this change 😃

[ivarmu]

LGTM

[djdanielsson]

LGTM