VMware: Get CDP/LLDP info from ESXi/vCenter hosts.

Summary:
Had to get CDP/LLDP long time ago and never posted it.  Hosted on gist.github.com for anyone to consume and manipulate how they please.  Definitely been useful and faster since it'll actually ignore disconnected nics.

Also automatically adjusts for CDP or LLDP.  I 'think' I wrote this, but I borrow so much from Lam and LucD that they deserve credit for being so awesome anyway.

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