Agora RTC Objective-C API Reference Refactor

### - d -

- data : AgoraMemPixelBuffer , AgoraMetadata , AgoraRtmGetMetadataResponse , AgoraRtmStorageEvent
- dataBuf : AgoraVideoFrame
- datastreamEncryptionEnabled : AgoraEncryptionConfig
- decoderOutputFrameRate : AgoraRtcRemoteVideoStats
- decodeTimeMs : AgoraEncodedVideoFrameInfo
- defaultVideoStreamType : AgoraRtcChannelMediaOptions
- delay : AgoraRtcRemoteVideoStats
- delegate : AgoraLiveKit , AgoraMetaSceneConfig , AgoraMetaServiceConfig , AgoraRtcEngineKit
- desc : AgoraMetaBundleInfo , AgoraMetaSceneInfo
- destinationInfos : AgoraChannelMediaRelayConfiguration
- deviceId : AgoraCameraCapturerConfiguration , AgoraMediaPlayerUpdatedInfo
- dimensions : AgoraCameraCapturerConfiguration , AgoraScreenCaptureParameters , AgoraScreenVideoParameters , AgoraSimulcastStreamConfig , AgoraStreamLayerConfig
- disableAut : AgoraLocalAccessPointConfiguration
- distance : AgoraFacePositionInfo
- domainLimit : AgoraRtcEngineConfig
- domainList : AgoraLocalAccessPointConfiguration
- downlinkMultipathMode : AgoraRtcChannelMediaOptions
- downlinkReport : AgoraLastmileProbeResult
- downloadSize : AgoraMediaPlayerCacheStatistics
- duration : AgoraChannelStats , AgoraRtcMediaStreamInfo
- durationMs : AgoraMediaRecorderInfo
- durationS : AgoraMusic