Edited Issue: DotSpatial.Positioning.Forms.SatelliteSignalBar doesn't work [425]

I used the sample code "DotSpatial.Examples.DemoGPS" and the "SatelliteSignalBar" is always in gray.
"SatelliteSignalBar" is listenning the "SatellitesChanged" event of the "Devices" class.
But the property "Devices.Satellites" is never called by the NMEA interpreter.

I added a call to thi property in "Interpreter.AppendSatellites" and in "Interpreter.SetFixedSatellites".
But it doesn't work.

There is the same issue with "DotSpatial.Positioning.Forms.SatelliteViewer"