* GPIO refactoring
GPIO now using ESP-IDF API on all chips.
LEDC interrupt fix removed - no longer needed.
Edited pins_arduino.h in variants according to changes in gpio.
* Edited analog channels functions
The doitESPduino32/pins_Arduino.h lacks definitions for the common SPI pins names: SS, MOSI, MISO, SCK
This breaks compatibility with Arduino libs, including SPI.h/.cpp
This PR solves the issue while maintaining compatibility with previous pin naming (IO5/23/19/18), and ensures consistency with other boards variants.
