Added molecule test for the Wazuh Agent

[dj-wasabi]

This PR contains the following changes:

• Added a Molecule scenario for testing the Wazuh Agent role.
• Added various minor changes that where found during linting;

Scenario
A Molecule scenario wazuh-agent is added and starts a single Wazuh Manager on CentOS 7. Once that is done, it start 5 containers (CentOS 6+7, Ubuntu 14, 16 + 18) and install the Wazuh Agent. During the molecule verify, a test is executed on the Wazuh Manager to see if all agents are registered correctly.

linting
During executing molecule lint -s wazuh-agent, a lot of messages like the following where printed:

      71:3      error    wrong indentation: expected 4 but found 2  (indentation)
      75:21     warning  truthy value should be true or false  (truthy)
      298:247   error    trailing spaces  (trailing-spaces).
      222:6     warning  missing starting space in comment  (comments)

I had to change various file to make these lint issues disappear. Most of them where indentation errors, 1 or more spaces on the end of the line. Most of them where changing no or yes to false or true. In some of the playbooks, I had to add --- to the beginning of the file, so it is correctly yaml.

If there are any questions, don't hesitate to ask. I did not knew that the PR would be that big (58 files changed), so apologies for that.

[manuasir]

Hi @dj-wasabi ,

As always, you did an amazing and valuable job again. Much appreciated.

Regards

[dj-wasabi]

Anytime! @manuasir 😄

[dj-wasabi]

Thank you for merging! 👍
Already working on the next one! 😄