Added setup script

unix.sh

@@ -0,0 +1,8 @@
+if [ $(uname) == "Darwin" ]; then
+  echo "MacOS detected"
+  brew install make cmake avrdude avr-libc
+else
+  echo "Debian based linux detected"
+  sudo apt-get update
+  sudo apt-get install gcc-avr binutils-avr avr-libc cmake make gdb-avr avrdude
+fi