Moved cotija classes into appserver folder; adding VideoCodecBaseMessenger class

PepperDashEssentials/AppServer/RoomBridges/CotijaBridgeBase.cs

@@ -0,0 +1,62 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Crestron.SimplSharp;
+
+using PepperDash.Core;
+using PepperDash.Essentials.Core;
+
+namespace PepperDash.Essentials
+{
+	/// <summary>
+	/// 
+	/// </summary>
+	public abstract class CotijaBridgeBase: Device
+	{
+		public CotijaSystemController Parent { get; private set; }
+
+		public string UserCode { get; private set; }
+
+		public abstract string RoomName { get; }
+
+		public CotijaBridgeBase(string key, string name)
+			: base(key, name)
+		{
+		}
+
+		/// <summary>
+		/// Set the parent.  Does nothing else.  Override to add functionality such
+		/// as adding actions to parent
+		/// </summary>
+		/// <param name="parent"></param>
+		public virtual void AddParent(CotijaSystemController parent)
+		{
+			Parent = parent;
+		}
+
+		/// <summary>
+		/// Sets the UserCode on the bridge object. Called from controller. A changed code will
+		/// fire method UserCodeChange.  Override that to handle changes
+		/// </summary>
+		/// <param name="code"></param>
+		public void SetUserCode(string code)
+		{
+			var changed = UserCode != code;
+			UserCode = code;
+			if (changed)
+			{
+				UserCodeChange();
+			}
+		}
+
+		/// <summary>
+		/// Empty method in base class.  Override this to add functionality
+		/// when code changes
+		/// </summary>
+		protected virtual void UserCodeChange()
+		{
+
+		}
+	}
+}