[WIP] Discrete adjoint multi-zone for python wrapper

[EvertBunschoten]

Proposed Changes

Enable the multi-zone discrete adjoint driver in the python wrapper.

Related Work

Resolve any issues (bug fix or feature request), note any related PRs, or mention interactions with the work of others, if any.

PR Checklist

Put an X by all that apply. You can fill this out after submitting the PR. If you have any questions, don't hesitate to ask! We want to help. These are a guide for you to know what the reviewers will be looking for in your contribution.

• I am submitting my contribution to the develop branch.
• My contribution generates no new compiler warnings (try with --warnlevel=3 when using meson).
• My contribution is commented and consistent with SU2 style (https://su2code.github.io/docs_v7/Style-Guide/).
• I used the pre-commit hook to prevent dirty commits and used pre-commit run --all to format old commits.
• I have added a test case that demonstrates my contribution, if necessary.
• I have updated appropriate documentation (Tutorials, Docs Page, config_template.cpp), if necessary.

[joshkellyjak]

Nice, do you have a test case for this?

[EvertBunschoten]

Nice, do you have a test case for this?

Working on it

[joshkellyjak]

Why are these no longer protected?

[EvertBunschoten]

The Scalar type needs to be visible to the AdjointProduct and Identity class headers

[pcarruscag]

Do it this way instead 38cddb7

I don't want typedefs in header files, which will then propagate to anything that includes the same header, possibly aliasing or coliding with other stuff, also the helper classes can be hidden.