Agora RTC Objective-C API Reference Refactor

Here is a list of all struct and union fields with links to the structures/unions they belong to:

### - q -

- qoe_quality : RemoteAudioTrackStats
- qoeQuality : RemoteAudioStats , AgoraRtcRemoteAudioStats
- qos : AgoraRtmJoinTopicOption
- quality : AudioRecordingConfiguration , RemoteAudioStats , RemoteAudioTrackStats , AgoraAudioRecordingConfiguration , AgoraRtcRemoteAudioStats
- quality_adapt_indication : LocalVideoTrackStats
- quality_changed_reason : RemoteAudioTrackStats
- qualityAdaptIndication : LocalVideoStats
- qualityChangedReason : RemoteAudioStats , AgoraRtcRemoteAudioStats
- queryCameraFocalLengthCapability : AgoraRtcEngineKit
- queryChannel() : IH265Transcoder
- queryChannelWithToken:channel:uid: : <AgoraH265TranscoderProtocol>
- queryCodecCapability : AgoraRtcEngineKit , IRtcEngine
- queryDeviceScore : AgoraRtcEngineKit , IRtcEngine
- queryDoc() : ISyncClient
- queryHDRCapability() : IRtcEngine
- queryHDRCapability: : AgoraRtcEngineKit
- queryInterface() : IEngineBase , IRtcEngine , AutoPtr< T >
- queryScreenCaptureCapability : AgoraRtcEngineKit