Add plink.exe support

[lucdekens]

The plink.exe command in the PuTTY Suite is handy to send a command over SSH to a host, and receive the output back. The parameters, and more specifically the quoting of the remote command can be daunting. Especially if there are also quotes in that command. A function or cmdlet wrapper around plink.exe that simplifies this would be very much appreciated.

A sample use case https://communities.vmware.com/message/2629189#2629189