OLED driver function to set pixels (#9713)

* Add a function to set individual pixels

* Add documentation for oled_write_pixel

* use smaller data type for oled_write_pixel

* Fix boundary check edge case

* Update oled_write_pixel doc

Co-authored-by: Ryan <[email protected]>

Co-authored-by: Ryan <[email protected]>

docs/feature_oled_driver.md

@@ -247,6 +247,10 @@ void oled_write_raw_byte(const char data, uint16_t index);
 // Writes a PROGMEM string to the buffer at current cursor position
 void oled_write_raw_P(const char *data, uint16_t size);
 
+// Sets a specific pixel on or off
+// Coordinates start at top-left and go right and down for positive x and y
+void oled_write_pixel(uint8_t x, uint8_t y, bool on);
+
 // Can be used to manually turn on the screen if it is off
 // Returns true if the screen was on or turns on
 bool oled_on(void);