fixed name collision for keyword NONE

[dizcza]

Embarrassingly, NONE enum collides with another NONE enum defined in ezTime.

Namespaces. Yeah.

Also, I'm a bit frustrated that Meshtastics has a fixed dependency on this oled lib even though I'm not using any oleds: I'm using a TFT display and LovyanGFX (not me but rather you in the Meshtastic display code). More bugs, more code, more space...

[dizcza]

For instance, copied from src/graphics/TFTDisplay.cpp:

#elif defined(ST7735_CS)
#include <TFT_eSPI.h> // Graphics and font library for ILI9341 driver chip

static TFT_eSPI tft = TFT_eSPI(); // Invoke library, pins defined in User_Setup.h

#endif