add openai apis (#11255)

Author: gewarren

_zip/missingapi.yml

@@ -35,6 +35,10 @@ references:
   name: AssistantClient
   fullname: OpenAI.Assistants.AssistantClient
   href: https://github.com/openai/openai-dotnet/blob/main/api/OpenAI.netstandard2.0.cs
+- uid: OpenAI.Audio.AudioClient
+  name: AudioClient
+  fullname: OpenAI.Audio.AudioClient
+  href: https://github.com/openai/openai-dotnet/blob/main/api/OpenAI.netstandard2.0.cs
 - uid: OpenAI.Chat.ChatClient
   name: ChatClient
   fullname: OpenAI.Chat.ChatClient
@@ -63,6 +67,10 @@ references:
   name: RealtimeConversationSession
   fullname: OpenAI.RealtimeConversation.RealtimeConversationSession
   href: https://github.com/openai/openai-dotnet/blob/main/api/OpenAI.netstandard2.0.cs
+- uid: OpenAI.Responses.OpenAIResponseClient
+  name: OpenAIResponseClient
+  fullname: OpenAI.Responses.OpenAIResponseClient
+  href: https://github.com/openai/openai-dotnet/blob/main/api/OpenAI.netstandard2.0.cs
 - uid: Polly.CircuitBreaker.CircuitBreakerStrategyOptions`1
   name: CircuitBreakerStrategyOptions`1
   fullname: Polly.CircuitBreaker.CircuitBreakerStrategyOptions`1