Agora RTC Objective-C API Reference Refactor

Here is a list of all namespace members with links to the namespace documentation for each member:

### - q -

- QUALITY_ADAPT_INDICATION : agora::rtc
- QUALITY_BAD : agora::rtc
- QUALITY_DETECTING : agora::rtc
- QUALITY_DOWN : agora::rtc
- QUALITY_EXCELLENT : agora::rtc
- QUALITY_GOOD : agora::rtc
- QUALITY_POOR : agora::rtc
- QUALITY_REPORT_FORMAT_TYPE : agora::rtc
- QUALITY_REPORT_HTML : agora::rtc
- QUALITY_REPORT_JSON : agora::rtc
- QUALITY_TYPE : agora::rtc
- QUALITY_UNKNOWN : agora::rtc
- QUALITY_UNSUPPORTED : agora::rtc
- QUALITY_VBAD : agora::rtc
- queryDocCallback : agora::base