Added USB Connections class
Updated interface class to store name of the interface
Added Class/widget that will represent each usbconnection to standardize
Gave USBConnections a layout
Added USBConnections to the main window.  There still is a memory issue causing a seg fault with the constructor for the class
fixed bug in usb connections not initializing layout, still bug in interface trying to open interface second time
Updated interface class to more properly handle opening and closing connections
Further updated interface to construct usbport immediately and deal with that directly
Work before lunch on fixing usb open/close bug
Corrected bug in usbconnection that caused open button to be connected to Close()