[PWGCF] Add new process function in femto producer

[ariedel-cern]

Add new process function in femto producer (tracks, v0s, cascades and event shape information for PbPb collisions) and minor fixes.

[github-actions]

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

[alibuild]

Auto-approving on behalf of @ariedel-cern.

[alibuild]

Error while checking build/O2Physics/o2 for 3283b9a at 2026-08-10 12:50:

## sw/BUILD/O2Physics-latest/log
c++: fatal error: Killed signal terminated program cc1plus
ninja: build stopped: subcommand failed.

Full log here.

[alibuild]

Error while checking build/O2Physics/staging for feeb401 at 2026-08-10 13:32:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGCF/Femto/Core/collisionBuilder.h:364:5: error: enumeration value 'kQvecDetectorLast' not handled in switch [-Werror=switch]
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGCF/Femto/Core/collisionBuilder.h:380:5: error: enumeration value 'kQvecDetectorLast' not handled in switch [-Werror=switch]
ninja: build stopped: subcommand failed.

Full log here.

[alibuild]

Error while checking build/O2Physics/code-check for feeb401 at 2026-08-10 16:15:

## sw/BUILD/O2Physics-code-check-latest/log
--
========== List of issues found ==========
++ echo 'Found 2 errors and 0 warnings.'
Found 2 errors and 0 warnings.
++ [[ 2 -gt 0 ]]
++ cat /sw/BUILD/5ee661ab520fd6fbfec52ce6530decbe1b039fc5/O2Physics-code-check/errors.txt
PWGCF/Femto/Core/collisionBuilder.h:364:13: error: enumeration value 'kQvecDetectorLast' not handled in switch [clang-diagnostic-switch,-warnings-as-errors]
PWGCF/Femto/Core/collisionBuilder.h:380:13: error: enumeration value 'kQvecDetectorLast' not handled in switch [clang-diagnostic-switch,-warnings-as-errors]
++ [[ 0 -gt 0 ]]
++ [[ 2 -gt 0 ]]
++ exit 1
--

Full log here.