TMDM-7962 : fixed the first level multiple elements aren't displayed issue
TMDM-7945 : tMdmInput duplicate record with batch size
TMDM-7945: "tMdmInput duplicate record with batch size"
TMDM-7990: "Problem to filter UUID element in the WebUI"

Amend previously proposed implementation:
* Fix wacky detection of alias content (guessing aliased content on a name that can change is rather odd).
* No obvious reason for excluding SYSTEM storages from fix.
Adds missing use case: in case of composite key, check all key fields are present in a order by clause.
Normalize select now ensure order by clauses are not repeated in query.
Includes SQL Server in database dialects that needs implicit order by.
Adds quick test for orderBy PK.

(https://jira.talendforge.org/browse/TMDM-7945)
(https://jira.talendforge.org/browse/TMDM-7990)
Merge branch 'maintenance/5.6'