Optimize cookieBanner component about oc-gdpr-plugin

Add example banner messages for different EU countries

~Have read up and it seems the message doesn't matter, depending on each country although there are different laws within each country with regards to the Banner and I will add the list below. Maybe this can be added to the notes section to help users.

[damsfx]

@ayumihamsaki ... awesome work !

Also could create a list for the "Contact Links of Data Controller" and place the list of links in the Info and Help Section.

For example GA has a special Opt-Out webpage that should be linked and most people would not know about it. So making a list of the most common ones and placing it in the new Info and Help Section should also make things easier to fill out the form.

e.g.