Support of Vertiv CRAC

Device Requests
1

https://p.libren.ms/view/97e6077e
https://p.libren.ms/view/0e02a445

2

https://p.libren.ms/view/b541a79c

Try to add Vertiv CRAC/UPS to Librenms and all recognized as generic Linux OS. The management interface in use is RDU-SIC G2