Dilog implementation

[felixhekhorn]

Do we want to swap the Dilog implementation here
https://github.com/N3PDF/yadism/blob/593a012dc7f4666c2c993dbdd37a6a2d55db0455/src/yadism/coefficient_functions/special/__init__.py#L8

with this one https://arxiv.org/abs/2201.01678 ?

[alecandido]

From the point of view of the code, they're both a bit ugly, but not terribly ugly.

For me, they're pretty the same, and it takes little to replace. If you wish, do it immediately, and run whatever benchmark (even a realistic one, but the easiest possible), to check that it's not worse (better/equal it's fine, even with equal performance we can replace).