Add FFE evaluation completion hook#3909

leoromanovsky wants to merge 6 commits into

leo.romanovsky/milestone-1-runtime-evaluationDataDog/dd-trace-php:leo.romanovsky/milestone-1-runtime-evaluationfrom

leo.romanovsky/m2-m3-evaluation-completed-baseDataDog/dd-trace-php:leo.romanovsky/m2-m3-evaluation-completed-baseCopy head branch name to clipboard