avr-cmake-example

This is example of cmake usage (in CLion) for avr programming

Based on:

• https://github.com/bevice/avr_cmake_template
• https://github.com/mkleemann/cmake-avr (https://tomlankhorst.nl/avr-develop-debug-on-mac-os-x-with-clion/)

TODO:

• tests infrastructure based on Check
• simavr target in cmake (already works via CLion's configurations)