Revert "Other treatment to compute the weigh"

This reverts commit 1ac37fbea40d6f69e48a36a9fde5828555f38099.
Revert "Revert "New normalization rule implementation added (TreeTagger) Improvement of import process (multithreading) Minor fixes on position weigher and extractor.""

This reverts commit 8be12d8d9db80eff24bb811534ab95420231cfd5.
other treatment to comptute the weigth