Add fetchconfig, a perl script for retrieving configuration of
various network devices such as:
* Cisco IOS
* Cisco Catalyst
* FortiGate
* ProCurve
* Parks
* Alcatel Ethernet Routers (Riverstone)
* Dell PowerConnect switches
* Old Terayon 3200/3500 CMTS
PR: 120843
Submitted by: salexanov at gmail.com