CBORO-163: Analyze custom reports requirements
CBORO-163: Analyze custom reports requirements

- update doc to describe tracking processing in more detail
Djamy/platform,hugeval/platform,geoffroycochard/platform,ramunasd/platform,orocrm/platform,trustify/oroplatform,2ndkauboy/platform,hugeval/platform,Djamy/platform,Djamy/platform,trustify/oroplatform,hugeval/platform,northdakota/platform,ramunasd/platform,trustify/oroplatform,northdakota/platform,ramunasd/platform,geoffroycochard/platform,northdakota/platform,2ndkauboy/platform,geoffroycochard/platform,orocrm/platform,2ndkauboy/platform,orocrm/platform