Fixes assert not throwing exceptions for PkmnLibAI, now always throws exceptions if non-zero response.

PkmnLibSharp/Utilities/ResultChecker.cs

@@ -23,6 +23,16 @@ namespace PkmnLibSharp.Utilities
                     var stack = Pkmnlib.Generated.C.GetLastExceptionStacktrace().PtrString();
                     throw new NativeException("PkmnLib", message, stack);
                 }
+                case 5:
+                {
+                    var message = PkmnLibAI.Generated.C.GetLastException().PtrString()!;
+                    var stack = PkmnLibAI.Generated.C.GetLastExceptionStacktrace().PtrString();
+                    throw new NativeException("PkmnLibAI", message, stack);
+                }
+                default:
+                {
+                    throw new NativeException("Undefined", "", "");
+                }
             }
         }
     }