has way too many things

In short: added the ability to detect when a device has disconnected.
From this we have to achieve a way of:
- reconnecting the device
- re-subscribing to the fields it needs (it should already be subscribed
since the ESDI didn't stop tho - but for the sake of it, or in case a
device joins later)
- start sending data to it (which should be automatic given how we are
handling the devices)

devices/device.go

@@ -12,7 +12,7 @@ type Device struct {
 	Discover func() (peripheral.Peripheral, error)
 }
 
-var List map[string]Device = map[string]Device{
+var List map[string]*Device = map[string]*Device{
 	uidevice.NAME: {
 		Name:     uidevice.NAME,
 		Discover: DiscoverUIDevice,