Add hdmd nx m4kze support

PepperDash.Essentials.DM.4Series.sln

@@ -1,5 +1,4 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
+Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.7.34202.233
 MinimumVisualStudioVersion = 10.0.40219.1

src/Chassis/DmCardAudioOutput.cs

@@ -14,6 +14,9 @@ public class DmCardAudioOutputController : IBasicVolumeWithFeedback
     {
         public Audio.Output Output { get; private set; }
 
+        public string Key { get; private set; }
+        public string Name { get; private set; }
+
         public IntFeedback VolumeLevelFeedback { get; private set; }
 
         public BoolFeedback MuteFeedback { get; private set; }
@@ -24,6 +27,8 @@ public class DmCardAudioOutputController : IBasicVolumeWithFeedback
         public DmCardAudioOutputController(Audio.Output output)
         {
             Output = output;
+            Key = string.Format("DmCardAudioOutput-{0}", output.Number);
+            Name = Key;
             VolumeLevelFeedback = new IntFeedback(() => Output.VolumeFeedback.UShortValue);
             MuteFeedback = new BoolFeedback(() => IsMuted);
         }

src/Chassis/DmpsAudioOutputController.cs

@@ -352,6 +352,8 @@ public class DmpsAudioOutput : IBasicVolumeWithFeedback
         protected short MinLevel { get; set; }
         protected short MaxLevel { get; set; }
 
+        public string Key { get; private set; }
+        public string Name { get; private set; }
         public eDmpsLevelType Type { get; private set; }
         public BoolFeedback MuteFeedback { get; private set; }
         public IntFeedback VolumeLevelFeedback { get; private set; }
@@ -367,6 +369,8 @@ public DmpsAudioOutput(Dmps3AudioOutputBase output, eDmpsLevelType type)
             VolumeLevelInput = 0;
             EnableVolumeSend = false;
             Type = type;
+            Key = string.Format("DmpsAudioOutput-{0}", type);
+            Name = Key;
             MinLevel = -800;
             MaxLevel = 100;