credits Mumpf and Harry1999
New driver for ILI9341-OLED-colordisplay, with rotation, flip, colordepth, gammacorrection. Tested with 2.8inch OLED-Display ILI9241
Conflicts: README.md build-scripts/ESP32-A1S-sdkconfig.defaults build-scripts/I2S-4MFlash-sdkconfig.defaults build-scripts/NonOTA-I2S-4MFlash-sdkconfig.defaults build-scripts/NonOTA-SqueezeAmp-sdkconfig.defaults build-scripts/SqueezeAmp4MBFlash-sdkconfig.defaults build-scripts/SqueezeAmp8MBFlash-sdkconfig.defaults