Adding fail2ban files generation based on templates.

[fizista]

Maybe this patch will be useful. Personally, I had to use filter generation based on templates.

[goetzk]

This seems like useful functionality, hopefully it will be considered despite not being submitted recently.

@tersmitten Are you open to considering this change?

[tersmitten]

That sounds useful indeed. Can you make it like this?

• https://github.com/Oefenweb/ansible-nagios-client/blob/master/tasks/main.yml#L73
• https://github.com/Oefenweb/ansible-nagios-client/blob/master/tasks/main.yml#L88