Agora RTC Objective-C API Reference Refactor

base Directory Reference

## Files
file | AgoraBase.h [code]
file | AgoraMediaBase.h [code]
file | AgoraMediaPlayerTypes.h [code]
file | AgoraOptional.h [code]
file | AgoraRefPtr.h [code]
file | IAgoraLog.h [code]
file | IAgoraMediaPlayerSource.h [code]
file | IAgoraMediaStreamingSource.h [code]
file | IAgoraParameter.h [code]
file | time_utils.h [code]