Embedded Python as a Conan package

This Conan recipe builds an embedded Python distribution that is intended to be used as part of an application (e.g. placed into the bin directory). The application can then execute Python code internally.

Motivation

Python.org provides an embeddable package as a minimal distribution that is intended exactly for this purpose. The documentation suggests that it is possible to install third-party packages within this distribution and embed everything into an application, but it's quite short on details. By design, pip is not available in the embedded Python in order to ensure that the environment is frozen after deployment. However, this does make it difficult to get third-party packages into the environment in the first place.

The aim of this Conan recipe is to make it easy to build an embedded Python distribution with any third-third party packages available on pypi.org.