Building pCraft (main or ami2?)

I was wondering what's the branch to use for building pCraft main or ami2? and if there is an install documentation somewhere.

I could build ami but after installing the following requirements:

- pybind11
- libcsv
- libavro23

and the install of the Python package seems not possible with pip3.  It would be super cool to have a small documentation for the installation process.

