* 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
Add the Wemos Lolin32 Lite (no longer being produced same as Lolin32) and
the TTGO T7 v1.3 and v1.4 boards (status unknown). All three are rather
generic ESP32 boards the main difference being pin layouts.
