[fti] refactor and fix full text indexation handling * moved logic from repository to the native source * avoid creating a FTIndexOp when no full text indexation is needed * entities with fulltext_container set are not indexed even when not related to a container * avoid duplicated unindexation

\.svn
^build$
^dist$
\.pyc$
\.pyo$
\.bak$
\.old$
\~$
\#.*?\#$
\.swp$
^doc/book/en/apidoc$