Extracted non-related controller method into Croogo Libraries.

[damien-biasotto]

Title is kind of explicit. I may be add some tests later to cover newly created methods.

[scrutinizer-notifier]

The inspection completed: 12 new issues, 4 updated code elements

[rchavik]

Hmm. I don't really like this one.

• Although the menu setup code is weird to have there, I don't see much value of moving those code into a specialized method in the CroogoNav class. Maybe we can add a new event instead and have a listener to handle it.
• The although rename of roleId() to getCurrentUserRoleId(), I also feel this is too verbose and might be better served if we have a separate Component for this, eg CroogoSession under Acl. Hmm, maybe for 2.3.