prepare for next development iteration
[Evo] #2198 : events trace management
[Evo] #2172 : add traces in ent-core apps
[Evo][Common] #2197 : Added event aggregation processing.
[Evo][Feeder] #2265 : create group for user with same function in same structure
[Evo][Directory] #2270 : manage manual groups
[Evo][Directory] #2273 : structures attachments
[Evo][Directory] #2307 : Admin ui updated to manage manual groups.
[Evo][Portal] #2307 : Admin ui updated to manage manual groups.
[directory] added css classes
[infra] added empty template check
[directory] changed css classes in account
fix tests
[Fix][Session] #2308 : fix structure array
[Evo][Directory] #2322 : list all functions
[Evo] #2312 : refactor functions
[Evo] #2275 : manage function inheritance
[Evo] #2319 : add arrays for some sessions infos
[Evo][Directory] #2317 : Added manual local admin attribution in the admin console.
[Evo][Portal] #2317 : Local admin attribution in console, css&less style.