run-cpp v1.0.0-alpha.1

Thanks to @peicasey for compiling for macOS!

Instructions
Only Linux (incl. WSL) and macOS are supported for now

1. Download the release file.
2. Rename it to run (for convenience when typing ./run).
3. Copy/move it to your project's root folder. Make sure your *.cpp files are in a subdirectory labeled src.
4. Open a terminal in your project's root folder, or change the directory of an existing terminal to your project's root folder.
5. Run the command ./run to compile and run your code!