FS#11101 - user selectable USB cable bevaviour
Added new menu item under Settings.General.System, to select whether USB cable connection enters charging mode by default, or data transfer mode.
By default, the option is set to "No". Meaning, in order to have RB enter charging mode, a specific button should be pressed by the user.
If the option is set to "Yes", USB connection causes RB to enter charging mode, unless the specified button is pressed, causing RB to switch into data xfer mode.
This task depends upon