Add segyio

[jtpio]

Related to experiments with repo2jupyterlite:

• Try to build with repo2jupyterlite stevejpurves/seg_tutorial#1
• build failure in beta service jupyterlite/repo2jupyterlite#9

[jtpio]

Thanks @DerThorsten !

Do you know what may be causing the CI failure?

[DerThorsten]

Thanks @DerThorsten !

Do you know what may be causing the CI failure?

So initially it says that cross python is leaking some stuff outside the cross-python env...this is why I tried without cross env.
But that did not work out.

If segyio is important I can put more serious effort in it and try a local build of it (debugging trough the CI is never a good idea)

[jtpio]

If segyio is important

The main motivation was to maybe document how folks could make their repos compatible with repo2jupyterlite as an alternative to Binder, in the context of jupyterlite/repo2jupyterlite#9. Because it started from a real world use case with this repo: https://github.com/stevejpurves/seg_tutorial

I was thinking that this could serve as an example where a package can't be installed automatically with repo2jupyterlite / jupyterlite-xeus, and needs to be packages for emscripten-forge.

But we could use another package as an example.