added arduino nano every config

Author: midasgossye

Diff for: misc/default.yml

@@ -9,6 +9,8 @@ packages:
     url: https://downloads.arduino.cc/packages/package_index.json
   arduino:samd:
     url: https://downloads.arduino.cc/packages/package_index.json
+  arduino:megaavr:
+    url: https://downloads.arduino.cc/packages/package_index.json
   esp8266:esp8266:
     url: http://arduino.esp8266.com/stable/package_esp8266com_index.json
   adafruit:avr:
@@ -57,6 +59,17 @@ platforms:
         - NUM_SERIAL_PORTS=2
       warnings:
       flags:
+  nano_every:
+        board: arduino:megaavr:nona4809
+        package: arduino:megaavr
+        gcc:
+          features:
+          defines:
+            - MILLIS_USE_TIMERB3
+            - NO_EXTERNAL_I2C_PULLUP
+            - AVR_NANO_4809_328MODE
+          warnings:
+          flags:
   esp32:
     board: esp32:esp32:featheresp32:FlashFreq=80
     package: esp32:esp32
@@ -181,6 +194,7 @@ compile:
     - esp32
     - esp8266
     - mega2560
+    - nano_every
 
 unittest:
   compilers: