Portaudio conan (v2.0) package

Initially copied from https://github.com/bincrafters/community

Deployment

Execute these commands:

git clone https://github.com/dimi309/portaudio-conan
cd portaudio-conan
conan export . --version=19.7.0

The package can be referenced in conanfiles as portaudio/19.7.0