tests: Add test for paranoid ovpn_copy_server_files
tests: Add test for paranoid ovpn_copy_server_files

* Make sure this works
* Related to #73

elie195/docker-openvpn,richnologies/docker-openvpn,kylemanna/docker-openvpn,slamont/docker-openvpn,hjnijlunsing/docker-openvpn-armhf,rdev02/docker-openvpn,myplacedk/docker-openvpn