chore: move classes and interfaces to individual files

src/PepperDash.Essentials.MobileControl.Messengers/Messengers/DeviceMessageBase.cs

@@ -0,0 +1,39 @@
+using Newtonsoft.Json;
+
+namespace PepperDash.Essentials.AppServer.Messengers
+{
+  /// <summary>
+  /// Base class for device messages that include the type of message
+  /// </summary>
+  public abstract class DeviceMessageBase
+  {
+    /// <summary>
+    /// The device key
+    /// </summary>
+    [JsonProperty("key")]
+    /// <summary>
+    /// Gets or sets the Key
+    /// </summary>
+    public string Key { get; set; }
+
+    /// <summary>
+    /// The device name
+    /// </summary>
+    [JsonProperty("name")]
+    public string Name { get; set; }
+
+    /// <summary>
+    /// The type of the message class
+    /// </summary>
+    [JsonProperty("messageType")]
+    public string MessageType => GetType().Name;
+
+    /// <summary>
+    /// Gets or sets the MessageBasePath
+    /// </summary>
+    [JsonProperty("messageBasePath")]
+
+    public string MessageBasePath { get; set; }
+  }
+
+}