add server parameter on collectd::plugin::network::server

[fe80]

Hello,

I've actually a profile class with a Collectd::Plugin::Network::Server. My collectd can be overwrite by anybody, and my profil class can't be detect which old network file it's require to clean if I not create a new resource with absent statement.

I would like to manage this plugin with a fixed file name and define the server with a separated parameter.

Pull Request (PR) description

This feature include the possibility to add a specific title on collectd::plugin::network::server for the configuration file name. The server should be define with the server option.

This Pull Request (PR) fixes the following issues

[traylenator]

Hi

Could you rebase this. Arch support has been removed so that faling test will no longer exist.

Adding a needs-rebase tag, please remove once done.