Calling Julia compiled library from Python

[tkf]

@sdanisch

The other issue I run into when creating that PR was likely fixed by: https://github.com/JuliaLang/PackageCompiler.jl/pull/122

If you want to use Python ctypes, I don’t think this PR is enough. See: init_jl_runtime does not work with Python ctypes · Issue #144 · JuliaLang/PackageCompiler.jl · GitHub

For a complete example using Python ctypes, see: AOT compiling using PackageCompiler - #8 by tkf