Adds properties config for SIMPL Messenger classes and adds SetupDeviceMessengers() to MobileControlDdvc01RoomBridge to add individual device messengers

PepperDashEssentials/AppServer/Messengers/SimplMessengerPropertiesConfig.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Crestron.SimplSharp;
+
+using PepperDash.Essentials.Bridges;
+
+namespace PepperDash.Essentials.AppServer.Messengers
+{
+    /// <summary>
+    /// Properties to configure a SIMPL Messenger
+    /// </summary>
+    public class SimplMessengerPropertiesConfig : EiscApiPropertiesConfig.ApiDevicePropertiesConfig
+    {
+    }
+}