Service & config-dir split start with fedora 27

[thelan]

After upgrading some box to Fedora 27 it appears that the default package splits openvpn configuration with two services and config directories:

For server:
openvpn-server@{name}.service
/etc/openvpn/server/{name}.conf

For client:
openvpn-client@{name}.service
/etc/openvpn/client/{name}.conf

I'm not quite familiar with Jinja maps to patch it directly that's why i'm opening this issue.

[alxwr]

@thelan: I don't have a Fedora 27 box to test against. (Nor do I possess the needed Fedora experience.) Sry.
If you want this done soon, please dig into Jinja and submit a PR. I'll be happy to test your changes against FreeBSD, Ubuntu and Debian.