Replace obsolete *CryptoServiceProvider objects with Base create methods. Apply Array.Empty<> changes

Programs/GridProxy/GridProxy.cs

@@ -1914,7 +1914,7 @@ namespace GridProxy
                     if (ackCount == 0)
                     {
                         packet.Header.AppendedAcks = false;
-                        packet.Header.AckList = new uint[0];
+                        packet.Header.AckList = Array.Empty<uint>();
                     }
                 }
 

Programs/GridProxy/Plugins/ClientAO.cs

@@ -546,7 +546,7 @@ public class ClientAO : ProxyPlugin
         animate.AnimationList[0].AnimID = animationuuid;
         animate.AnimationList[0].StartAnim = run;
 
-        animate.PhysicalAvatarEventList = new AgentAnimationPacket.PhysicalAvatarEventListBlock[0];
+        animate.PhysicalAvatarEventList = Array.Empty<AgentAnimationPacket.PhysicalAvatarEventListBlock>();
 
         //SayToUser("anim " + animname(animationuuid) + " " + run);
         proxy.InjectPacket(animate, Direction.Outgoing);

Programs/examples/TestClient/ClientManager.cs

@@ -147,6 +147,7 @@ namespace OpenMetaverse.TestClient
             ++PendingLogins;
 
             TestClient client = new TestClient(this);
+            client.Settings.MFA_ENABLED = true;
             client.Network.LoginProgress +=
                 delegate(object sender, LoginProgressEventArgs e)
                 {