feat: move MC into Essentials

In order to solve some dependency issues that keep cropping up, MC
should be moved back into the Essentials repo and loaded automatically
on startup. This will allow for all plugins that use the MC Messengers
library to use the same version without fear of overwriting a dll due to
loading of plugin libraries.

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

@@ -0,0 +1,67 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using PepperDash.Essentials.Core.CrestronIO;
+using PepperDash.Essentials.Core.Shades;
+using Newtonsoft.Json;
+using PepperDash.Core;
+
+namespace PepperDash.Essentials.AppServer.Messengers
+{
+    public class ISwitchedOutputMessenger : MessengerBase
+    {
+
+        private readonly ISwitchedOutput device;
+
+        public ISwitchedOutputMessenger(string key, ISwitchedOutput device, string messagePath)
+            : base(key, messagePath, device as Device)
+        {
+            this.device = device;
+        }
+
+#if SERIES4
+        protected override void RegisterActions()
+#else
+        protected override void CustomRegisterWithAppServer(MobileControlSystemController appServerController)
+#endif
+        {
+            base.RegisterActions();
+
+            AddAction("/fullStatus", (id, content) => SendFullStatus());
+
+            AddAction("/on", (id, content) =>
+            {
+
+                device.On();
+
+            });
+
+            AddAction("/off", (id, content) =>
+            {
+
+                device.Off();
+
+            });
+
+            device.OutputIsOnFeedback.OutputChange += new EventHandler<Core.FeedbackEventArgs>((o, a) => SendFullStatus());       
+        }
+
+        private void SendFullStatus()
+        {
+            var state = new ISwitchedOutputStateMessage
+            {
+                IsOn = device.OutputIsOnFeedback.BoolValue
+            };
+
+            PostStatusMessage(state);
+        }
+    }
+
+    public class ISwitchedOutputStateMessage : DeviceStateMessageBase
+    {
+        [JsonProperty("isOn")]
+        public bool IsOn { get; set; }
+    }
+}