[Common] Fuse new evsel with timestamp

[ddobrigk]

No description provided.

[github-actions]

O2 linter results: ❌ 35 errors, ⚠️ 0 warnings, 🔕 48 disabled

[alibuild]

Error while checking build/O2Physics/o2 for a004beb at 2025-06-29 19:08:

## sw/BUILD/O2Physics-latest/log
CMake Error at cmake/O2PhysicsAddExecutable.cmake:113 (add_executable):
CMake Error at cmake/O2PhysicsAddExecutable.cmake:113 (add_executable):

Full log here.

[alibuild]

Error while checking build/O2Physics/o2 for 5e31f7e at 2025-06-29 19:47:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/11827-slc9_x86-64/0/Common/Tools/timestampModule.h:107:65: error: 'Long64_t' was not declared in this scope
/sw/SOURCES/O2Physics/11827-slc9_x86-64/0/Common/Tools/timestampModule.h:107:65: error: template argument 1 is invalid
/sw/SOURCES/O2Physics/11827-slc9_x86-64/0/Common/Tools/timestampModule.h:107:65: error: template argument 2 is invalid
/sw/SOURCES/O2Physics/11827-slc9_x86-64/0/Common/Tools/timestampModule.h:112:65: error: 'Long64_t' was not declared in this scope
/sw/SOURCES/O2Physics/11827-slc9_x86-64/0/Common/Tools/timestampModule.h:112:65: error: template argument 1 is invalid
/sw/SOURCES/O2Physics/11827-slc9_x86-64/0/Common/Tools/timestampModule.h:112:65: error: template argument 2 is invalid
/sw/SOURCES/O2Physics/11827-slc9_x86-64/0/Common/Tools/EventSelectionTools.h:565:21: error: comparison of integer expressions of different signedness: 'long int' and 'uint64_t' {aka 'long unsigned int'} [-Werror=sign-compare]
/sw/SOURCES/O2Physics/11827-slc9_x86-64/0/Common/Tools/EventSelectionTools.h:565:49: error: comparison of integer expressions of different signedness: 'long int' and 'uint64_t' {aka 'long unsigned int'} [-Werror=sign-compare]
ninja: build stopped: subcommand failed.

Full log here.

[alibuild]

Auto-approving on behalf of @ddobrigk.