initial snake commit, implemented led matrix and snake movements

snake/Makefile

@@ -0,0 +1,12 @@
+compile:
+	arduino-cli compile -b arduino:renesas_uno:unor4wifi snake.ino
+
+upload:
+	arduino-cli upload -b arduino:renesas_uno:unor4wifi -p /dev/ttyACM0
+
+upload_verbose:
+	arduino-cli upload -b arduino:renesas_uno:unor4wifi -p /dev/ttyACM0 -v
+
+run:
+	make compile
+	make upload