Agora RTC Objective-C API Reference Refactor

### - t -

- takeScreenshot() : IMediaPlayerSource
- takeScreenshot: : <AgoraRtcMediaPlayerProtocol>
- takeSnapshot() : IRtcEngine
- takeSnapshot:filePath: : AgoraRtcEngineKit
- takeSnapshotEx() : IRtcEngineEx
- takeSnapshotEx:uid:filePath: : AgoraRtcEngineKit , AgoraRtcEngineKit(Ex)
- TConnectionInfo() : TConnectionInfo
- timeToPushVideo() : IScreenCaptureSource::Control
- ToFractions() : NtpTime
- ToSeconds() : NtpTime
- ToTimestamp() : NtpTime
- TranscodingUser() : TranscodingUser
- TranscodingVideoStream() : TranscodingVideoStream
- triggerTranscode() : IH265Transcoder
- triggerTranscodeWithToken:channel:uid: : <AgoraH265TranscoderProtocol>