Get information for specific endpoint

[kelmcbri]

QuickCheck runs the same command across the entire set of endpoints listed in endpoints.json file.
Got a user request to add an argument capability to the action so you can identify a particular endpoint. I'm thinking user would run "list" method to obtain list of device names or device IP address and then copy/paste a particular name/address as argument to another action. i.e.
QC callStatus 192.1.1.1
would give current call stats for endpoint 192.1.1.1