Fix #266 - make the cxxbits weak so they can be overriden if present
Fix #266 - make the cxxbits weak so they can be overriden if present

remspoor/FastLED,PaulStoffregen/FastLED,remspoor/FastLED,NicoHood/FastLED,FastLED/FastLED,FastLED/FastLED,eshkrab/FastLED-esp32,tullo-x86/FastLED,PaulStoffregen/FastLED,PaulStoffregen/FastLED,kcouck/FastLED,FastLED/FastLED,tullo-x86/FastLED,FastLED/FastLED,kcouck/FastLED,NicoHood/FastLED,eshkrab/FastLED-esp32