Handle NMT Login packet

src/Prospect.Unreal/Net/Actors/AActor.cs

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+namespace Prospect.Unreal.Net.Actors;
+
+public class AActor
+{
+    
+}

src/Prospect.Unreal/Net/Actors/AGameModeBase.cs

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+namespace Prospect.Unreal.Net.Actors;
+
+public class AGameModeBase : AInfo
+{
+    public void PreLogin(string options, string address, FUniqueNetIdRepl uniqueId, out string? errorMessage)
+    {
+        // Login unique id must match server expected unique id type OR No unique id could mean game doesn't use them
+        errorMessage = null;
+    }
+}

src/Prospect.Unreal/Net/Actors/AInfo.cs

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+namespace Prospect.Unreal.Net.Actors;
+
+public class AInfo : AActor
+{
+    
+}

src/Prospect.Unreal/Net/Actors/APlayerController.cs

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+namespace Prospect.Unreal.Net.Player;
+
+public class APlayerController
+{
+    
+}