🚸 Add Basic Python Bindings for NAComputation

[ystade]

Description

I need the export functionality of the NAComputation to a string in the Python bindings of MQT QMap. This PR creates a binding for that on the Python side.

Checklist:

• The pull request only contains commits that are related to it.
• I have added appropriate tests and documentation.
• I have made sure that all CI jobs on GitHub pass.
• The pull request introduces no new warnings and follows the project's style guidelines.

[burgholzer]

This is missing a couple of small things:

• Python stubs similar to https://github.com/cda-tum/mqt-core/tree/main/src/mqt/core/ir (including docstrings)
• A small test on the Python side in the test suite to make sure this works as expected. (we currently do not track coverage of the bindings code, which is unfortunate, but I haven't found time to figure out how to actually do that)

Side note: I'd still be in favour of trying to unify the kinds of computations across the MQT in the future so that this additional bindings module is not even necessary.

Bigger comment: I am almost certain this will not work right away in QMAP and will rather depend on #662 and munich-quantum-toolkit/qmap#418, which still require some work to get right.
At the moment, you are probably better off to simply expose the NAComputation class as part of the QMAP bindings.

[burgholzer]

Would it make sense to add an interface target in the src/python/CMakeLists.txt file after including all the subdirectories that links all the bindings targets together.
That would let us use a single string here.
Maybe its also fine to leave this as is, given how this will change with #662 again anyway.

[burgholzer]

Closing this for now. Let's revisit once that makes more sense.
In the meantime, QMAP seems to be fine without this.