v3.4.0
Maintenance Release:
- add CI workflow in repository (thanks to @t-huyeng )
- changed RGB LED library (SmartLeds -> FastLED) in preparation for ESP32-S3 compatibility of this project
- fixed some build errors due to erraneous entries in board hal files
- upgrade Arduino Espressif32 v2.0.4 -> v2.0.5 (using ESP IDF v4.4)