Agora RTC Objective-C API Reference Refactor

### - w -

- WARN_ADM_GLITCH_STATE : agora
- WARN_ADM_IMPROPER_SETTINGS : agora
- WARN_ADM_PLAYOUT_AUDIO_LOWLEVEL : agora
- WARN_ADM_PLAYOUT_MALFUNCTION : agora
- WARN_ADM_POP_STATE : agora
- WARN_ADM_RECORD_AUDIO_LOWLEVEL : agora
- WARN_ADM_RECORD_AUDIO_SILENCE : agora
- WARN_ADM_RECORD_MALFUNCTION : agora
- WARN_ADM_RUNTIME_PLAYOUT_WARNING : agora
- WARN_ADM_RUNTIME_RECORDING_WARNING : agora
- WARN_ADM_WIN_CORE_IMPROPER_CAPTURE_RELEASE : agora
- WARN_ADM_WIN_CORE_NO_PLAYOUT_DEVICE : agora
- WARN_ADM_WIN_CORE_NO_RECORDING_DEVICE : agora
- WARN_ADM_WINDOWS_NO_DATA_READY_EVENT : agora
- WARN_APM_HOWLING : agora
- WARN_AUDIO_MIXING_OPEN_ERROR : agora
- WARN_CHANNEL_CONNECTION_IP_CHANGED : agora
- WARN_CHANNEL_CONNECTION_PORT_CHANGED : agora
- WARN_CHANNEL_CONNECTION_UNRECOVERABLE : agora
- WARN_CHANNEL_SOCKET_ERROR : agora
- WARN_INIT_VIDEO : agora
- WARN_INVALID_VIEW : agora
- WARN_LOOKUP_CHANNEL_REJECTED : agora
- WARN_LOOKUP_CHANNEL_TIMEOUT : agora
- WARN_NO_AVAILABLE_CHANNEL : agora
- WARN_OPEN_CHANNEL_INVALID_TICKET : agora
- WARN_OPEN_CHANNEL_REJECTED : agora
- WARN_OPEN_CHANNEL_TIMEOUT : agora
- WARN_OPEN_CHANNEL_TRY_NEXT_VOS : agora
- WARN_PENDING : agora
- WARN_SET_CLIENT_ROLE_TIMEOUT : agora
- WARN_SWITCH_LIVE_VIDEO_TIMEOUT : agora
- WIFI : agora::rtc
- WIFI_BLUETOOTH_COEXIST : agora::rtc
- WIRELESS_SIGNAL_POOR : agora::rtc