Update README.md
Update README.md
1. Add PHKArduinoLightInterface.h/.c, the file responsible to change light directly
2. makefile clang cflag change from -Ofast to -O3
Merge branch 'master' of https://github.com/etwmc/PersonalHomeKit
Fixed problem where INT32_MIN/MAX not found
Update PHKAccessory.cpp
Update README.md
Update README.md
Remove the function implementation of PHKArduinoLightInterface.c
Merge branch 'master' of https://github.com/etwmc/PersonalHomeKit
Change the compiler to GCC/G++
Update README.md
Update README.md
Update README.md
Update README.md
Update README.md