The details panel for devices
#Exposed methods
Binds handlers and creates a Panel instance
Requests the details via WebSockets and updates the view
Lists the selected nodes (more than 1) in the details panel
Show or hide the details panel based on it's current visibility
Shows the details panel
Hides the details panel
Removes the details panel and unbinds any websocket events
returns the visibility state of the details panel
returns the details panel instance