Validate ntp paths

Tested on Solaris and RedHat.
for Solaris default ntp packages/service is a matter of test. Includes both SUNWntp4* and SUNWntp* and also service: ntp4/ntp
I find ntp to be more standard that ntp4 - maybe we can simply set it from hiera.

The installed packages are stored in   $default_package_source    = '/var/sadm/pkg' - but may be better to specify a repo name explicity. heira??

Please note that the same issue experience earlier with ssh package array failing on Solaris applies to ntp packages as well. Fails with cannot convert array to string. - it must be  a puppet limitation when it comes to Solaris. Can i implement the array package check differently??


Tomorrow, I will test the module on SuSE as well - most likely works out of the box.