Service hasstatus and hasrestart atributes

[ffapitalle]

Hi, this is my first pull request to this project. Let me know any changes that I need to do.

This PR adds class parameters to modify service hasstatus and hasrestart atributes, that are currently fixed to true.
Motivation of this change is that under some circumstances, a service restarts fails as if ntp process was slowly to stop, and the new one starting can't bind to address / port.

puppet-agent[28907]: (/Stage[main]/Ntp::Config/File[/etc/ntp.conf]/content) content changed '{md5}401589661b64e90b77c9c7f3f6a88df8' to '{md5}d79f2e85f4b263535186c092f99ed5ff'
 systemd[1]: Stopping LSB: Start NTP daemon...
 ntp[29587]:  * Stopping NTP server ntpd
 ntp[29587]:    ...done.
 systemd[1]: Stopped LSB: Start NTP daemon.
 systemd[1]: Starting LSB: Start NTP daemon...
 ntp[29600]:  * Starting NTP server ntpd
 ntpd[29608]: ntpd 4.2.8p4@1.3265-o Fri Jul  6 20:10:51 UTC 2018 (1): Starting
 ntpd[29608]: Command line: /usr/sbin/ntpd -p /var/run/ntpd.pid -g -u 112:121
 ntp[29600]:    ...done.
 systemd[1]: Started LSB: Start NTP daemon.
 puppet-agent[28907]: (/Stage[main]/Ntp::Service/Service[ntp]) Triggered 'refresh' from 1 event
 ntpd[29611]: proto: precision = 0.052 usec (-24)
 ntpd[29611]: restrict default: KOD does nothing without LIMITED.
 ntpd[29611]: restrict ::: KOD does nothing without LIMITED.
 ntpd[29611]: unable to bind to wildcard address :: - another process may be running - EXITING
 ntpd[8066]: ntpd exiting on signal 15 (Terminated)

[tphoney]

Thanks @ffapitalle this is really really great work. Merging it now.

Awesome 👍

[ffapitalle]

Thanks @ffapitalle this is really really great work. Merging it now.

Awesome

Thank you!