Fixing wrover-demo build problems

[Steve-git-hub]

I have found that the wrover-demo builds with errors related to the LCD.
The LCD is created as an Adafruit_ILI9341 object which should use Adafruit_GFX functions.
However, screen.h and screen.cpp use TFT_eSPI functions such as setFreeFont, drawString and fontHeight which are not provided by Adafruit_GFX.

I have modified the code in my Fork https://github.com/Steve-git-hub/NightDriverStrip which now builds without errors... not saying its the most elegant solution but it does work and the text appears on the LCD screen.

Also on the ESP-WROVER-KIT board GPIO Pin 5 (Dave's favourite LED_PIN) is allocated to control the LCD backlight.
It does seem to work with the LED output and backlight doubled up but you can get flashing backlight problems.
So I am using Pin 4 for LED_PIN0 and setting Pin 5 permanently low to turn on the backlight.
Note that Pin 4 also drives the Blue channel of the onboard RGB Led but that is not problem for me.

I can now run the wrover-demo and use the JTAG debugging on the WROVER-KIT.