fix(radio): issues with rotary encoder (#5194)

- detection of initial direction of encoder after startup
- change of direction issue on radios with incorrectly wired encoder
- handle all wiring variations (without needing special #defines)
- handle the case when the radio is started with the encoder not on a detent position

radio/src/targets/simu/simpgmspace.cpp

@@ -63,8 +63,6 @@ rotenc_t rotaryEncoderGetValue()
   return rotencValue / ROTARY_ENCODER_GRANULARITY;
 }
 
-rotenc_t rotaryEncoderGetRawValue() { return rotencValue; }
-
 // TODO: remove all STM32 defs
 
 extern const etx_hal_adc_driver_t simu_adc_driver;