Update v0.0.5

• Optimised code to allow re-request of failed requests and support for contextual understanding.
• Support voice input, request in synchronous method, support TTS, output voice answer
• Optimize some code issues and reduce performance loss
• Multi-modal input support provides a more convenient user experience

Future Update (Some functions may be implemented in the future)

1. Support Integrated ESP32 with Max9814 and TTS Module
2. Optimize Arduino code
3. Upload to Arduino Library which is easy download and use
4. Use LittleFS (or FATS) instead of SPIFFS
5. Pack it to bin file that easy to flash