Added errorhandling to lookup API

[Max-checkmk]

Pull request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
• Build related changes
• Documentation content changes
• Other (please describe):

What is the current behavior?

• If there's an error when calling the url, the error is passed uncontrolled to the user

What is the new behavior?

• Errors when calling the endpoint will be catched in the lookup_api and returned to the lookup-modules for output

Other information

I'm sure there's a nicer way to do this. So any improvements appreciated.
Main problem is that ansible doesn't allow using the ansible.errors library in the api folder, just inside the modules.

[lgetwan]

I appreciate a lot to have a logging mechanism! :-D
Only minor change requests below...

[lgetwan]

Looks perfect, now!