Charger wattage and port fixes

What's new

• Charger wattage now shows on all ports. A long-standing bug meant charger power was never displayed in the main view. The underlying IOKit data was a CF set, not an array, and the silent cast failure hid all power source options. Fixed for both USB-C and MagSafe chargers.

• USB-C and MagSafe port data no longer mix. Both port types can have the same port number (e.g. port 1). All watchers now filter on port type as well as port number, so MagSafe and USB-C data stay separate.