Deprecate the max_token value

Author: justinyoo

src/AzureOpenAIProxy.PlaygroundApp/Clients/OpenAIApiClient.cs

@@ -39,7 +39,7 @@ public async Task<string> CompleteChatAsync(OpenAIApiClientOptions clientOptions
         };
         var options = new ChatCompletionOptions
         {
-            MaxOutputTokenCount = clientOptions.MaxTokens,
+            MaxOutputTokenCount = clientOptions.MaxOutputTokenCount,
             Temperature = clientOptions.Temperature,
         };
 

src/AzureOpenAIProxy.PlaygroundApp/Clients/OpenAIApiClientOptions.cs

@@ -23,7 +23,17 @@ public class OpenAIApiClientOptions
     /// <summary>
     /// Gets or sets the max_tokens value.
     /// </summary>
-    public int? MaxTokens { get; set; }
+    [Obsolete("Use MaxOutputTokenCount instead.")]
+    public int? MaxTokens
+    {
+        get { return this.MaxOutputTokenCount; }
+        set { this.MaxOutputTokenCount = value; }
+    }
+
+    /// <summary>
+    /// Gets or sets the max_completion_tokens value.
+    /// </summary>
+    public int? MaxOutputTokenCount { get; set; }
 
     /// <summary>
     /// Gets or sets the temperature value.