Change corsair LedId mapping for custom devices

[DarthAffe]

As recommended in CorsairOfficial/cue-sdk#22

[RobertBeekman]

While we're at it, we can use this to handle motherboards and GPU too I'd imagine. Both device types are already added to the CorsairDeviceType enum, they just aren't handled.

Someone I can ask to test the implementation reported an issue here Artemis-RGB/Artemis.Plugins#30