Add flag vor Overlapp Removal

Implementation for a flag if a hit would have been removed by the Overlapp removal

We want to study the impact of removing the Overlapp Removing part

Only valid for Pixel!

Screenshot_2025-04-09_at_14.33.57

This can be used to test the impact of Overlapp Removal while Training Review checklist:

Tagging @sargyrop @dguest @alfroch @wlai @coccaro

• CI Passing
• Comments addressed
• Source branch is up to date with target