Added a finalizer to `BatchedExecutor`

LLama/Batched/BatchedExecutor.cs

@@ -15,6 +15,11 @@ public sealed class BatchedExecutor
     private int _nextSequenceId;
 
     internal LLamaBatch Batch { get; }
+
+    /// <summary>
+    /// Epoch is incremented every time Infer is called. Conversations can use this to keep track of
+    /// whether they're waiting for inference, or can be sampled.
+    /// </summary>
     internal ulong Epoch { get; private set; }
 
     /// <summary>
@@ -50,6 +55,11 @@ public sealed class BatchedExecutor
         Epoch = 1;
     }
 
+    ~BatchedExecutor()
+    {
+        Dispose();
+    }
+
     /// <summary>
     /// Start a new <see cref="Conversation"/> with the given prompt
     /// </summary>
@@ -97,6 +107,8 @@ public sealed class BatchedExecutor
             return;
         IsDisposed = true;
 
+        GC.SuppressFinalize(this);
+
         Context.Dispose();
     }