Use cc wrapper to capture object files

Rather than all the distutils hacks, a cc wrapper can be used 'outside' of PyOxidizer while building a venv, and then PyOxidizer can pick them up from a pre-determined location.

There is the well known ccache, and newer clcache. Getting the artifacts out of these might be troublesome.

The Rust https://github.com/mozilla/sccache which looks ideal, but again it might be difficult to get access to the artifacts.

A thinner wrapper would be better; perhaps even a custom one.

No files, tests, or entry points are named. Start by tracing the distutils hacks used while building a venv and how PyOxidizer currently discovers object files, then compare whether a custom cc wrapper or an existing tool such as sccache can expose artifacts at a predetermined location. Done requires a decided wrapper and artifact-discovery design.

Written by the indexing model from the issue text.