Moves PluginLoader to Essentials.Core. Moves IDeviceFactory and IPluginDeviceFactory interfaces to their own files in a better locatino

essentials-framework/Essentials Core/PepperDashEssentialsBase/Factory/IDeviceFactory.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Crestron.SimplSharp;
+
+namespace PepperDash.Essentials.Core
+{
+    /// <summary>
+    /// Defines a class that is capable of loading device types
+    /// </summary>
+    public interface IDeviceFactory
+    {
+        /// <summary>
+        /// Will be called when the plugin is loaded by Essentials.  Must add any new types to the DeviceFactory using DeviceFactory.AddFactoryForType() for each new type
+        /// </summary>
+        void LoadTypeFactories();
+    }
+}