Delayed neutron fraction by isotope with IFP method

[OlivaresDarian]

Description

This modification allows the Iterated Fission Probability (IFP) method implemented by @JoffreyDorville to break down the effective delayed neutron fraction $\beta_{eff}$ tally by isotope. This extension of the IFP method enables deeper analyses in reactor physics.

In practice, the IFP tally stores certain ancestor information to compute adjoint-weighted tallies. This adaptation follows the same principle but also records the isotope that generated each delayed neutron. It slightly increases both memory use and computation time.

To use it, you simply need to define a list of nuclides in $\texttt{beta-num-tally.nuclides = [...]}$.

Fixes #3605

Checklist

• I have performed a self-review of my own code
• I have run clang-format (version 15) on any C++ source files (if applicable)
• I have followed the style guidelines for Python source files (if applicable)
• I have made corresponding changes to the documentation (if applicable)
• I have added tests that prove my fix is effective or that my feature works (if applicable)

[GuySten]

You should run clang format (version 15) on cpp source files for CI to successfully run.

[OlivaresDarian]

You should run clang format (version 15) on cpp source files for CI to successfully run.

Thanks @GuySten for your help

[GuySten]

I think you accidentally removed src/output.cpp and its header.
You should watch closely the "files changed" tab of this PR.
A change in 47 files seems too much for a feature of this scope.

[OlivaresDarian]

I think you accidentally removed src/output.cpp and its header. You should watch closely the "files changed" tab of this PR. A change in 47 files seems too much for a feature of this scope.

You're right. I already restored the output.* files. From the 47 changes, more than 27 are related to tests modifications because we added a new variable to the Particle object. The current version passes all tests in local.

[GuySten]

But you also added new files (I think by mistake).
Edit:
You can find them by the green plus in the files tab of this PR.

[GuySten]

I've noticed that this feature does not support "total" nuclide. I will submit a fix soon.

[GuySten]

Once #3719 is merged I intend to simplify this PR as well.

[GuySten]

I simplified this PR further.
@OlivaresDarian, you are invited to give feedback.

[GuySten]

Apparently I broke something. I will try to fix this soon.

[GuySten]

I intend to update this PR once #3728 is merged.

[GuySten]

This PR should wait a bit to #3728.