[PWGLF] Added coalescence of deuterons

[alcaliva]

No description provided.

[github-actions]

O2 linter results: ❌ 0 errors, ⚠️ 0 warnings, 🔕 0 disabled

[alcaliva]

Hi @chiarapinto,
this is the first implementation of deuteron coalescence in jets. Here I'm using the simple coalescence model (deltaP < p0). Next step is to implement the mechanism based on the Wigner formalism. I can't seem to find Maxi to tag him.

[alibuild]

Error while checking build/O2Physics/o2 for e7a616b at 2025-12-21 14:31:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/14308-slc9_x86-64/0/PWGLF/Tasks/Nuspex/antinucleiInJets.cxx:59:10: fatal error: ROOT/Math/Boost.h: No such file or directory
ninja: build stopped: subcommand failed.

Full log here.