Add Feather Sense to HX8357 example sketches

[DJDevon3]

• Arduino board: Adafruit NRF52840 Feather Sense
• Arduino IDE version: 1.8.13

All of the HX8357 example sketches do not have the feather sense board explicitly listed and will fail to compile. Compile error states this line is faulty: Adafruit_HX8357 tft = Adafruit_HX8357(TFT_CS, TFT_DC);
'TFT_CS' was not declared in this scope

To fix simply add the board (ARDUINO_NRF52840_FEATHER_SENSE) to the anything else list and the sketches work. Very simple fix. Every HX8357 example sketch needs to be updated.

// Anything else! #if defined (__AVR_ATmega32U4__) || defined(ARDUINO_SAMD_FEATHER_M0) || defined (__AVR_ATmega328P__) || \ defined(ARDUINO_SAMD_ZERO) || defined(__SAMD51__) || defined(__SAM3X8E__) || defined(ARDUINO_NRF52840_FEATHER) || defined(ARDUINO_NRF52840_FEATHER_SENSE) #define STMPE_CS 6 #define TFT_CS 9 #define TFT_DC 10 #define SD_CS 5 #endif

[ladyada]

hi can you submit a PR? that would be great! :)