Fix for bugzilla #3700 - ARC1ClusterInfo.pm uses netstat
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This merge request is automatically copied from !134 (merged) orginally made by @floridop
The following commits were omitted due to cherrypick failures:
c4d1118e 9b337ac7 2704c0cc 79800b1b 8736aa55
Inspect the merge request and only merge if you are sure everything that should be included is included.
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## Fix for bugzilla #3700 - ARC1ClusterInfo.pm uses netstat
https://bugzilla.nordugrid.org/show_bug.cgi?id=3700
Description
Reimplementation of netstat/ss scan in HostInfo.pm
Logic for running the netstat/ss has moved to HostInfo.pm, with the addition of the ports hash in the schema.
New calls are added to CEInfo.pm.in to reference the ports and processes
ARC1ClusterInfo.pm has been heavily modified not to be dependent on netstat or ss. The information is only taken from HostInfo.pm datastructure.