Able to login and out user

Programs/examples/PlexView/ClientMgr.cs

@@ -0,0 +1,47 @@
+using System;
+using System.Collections.Generic;
+
+namespace PlexView
+{
+	public sealed class ClientMgr
+	{
+		private static readonly ClientMgr instance = new ClientMgr();
+		private Dictionary<Guid, User> users;
+
+		private ClientMgr()
+		{
+			users = new Dictionary<Guid, User>();
+		}
+
+		public static ClientMgr Instance {
+			get {
+				return instance; 
+			}
+		}
+
+		public User NewUser(Creds creds)
+		{
+			User client = new User(creds);
+			client.Settings.LOGIN_SERVER = creds.gridURL;
+			//@todo if creds.gridName not in Grids list add it
+			users.Add(client.sessionID, client);
+			return client;
+		}
+
+		public bool Login(User client)
+		{
+			return client.Network.Login(client.creds.first, client.creds.last, client.creds.pass, Constants.CHANNEL, Constants.VERSION);
+		}
+
+		public bool Logout(Guid sessionID)
+		{
+			if (users.ContainsKey(sessionID)) {
+				users[sessionID].Network.Logout(); //@note this is a blocking call
+				return true;
+			} else {
+				return false;
+			}
+		}
+	}
+}
+