Add support of filters
Fix previous patch and change logic.

The filters are used in the getStatistic() method and no more only in
the drawStatistic() method.
The getStatistic() method receive a new argument: $considerFilters,
whether we should consider the filters.
Add explanations about Hoa\Bench::filter().
Add a little note to filters.
fix typo
Update composer.json.
Better composer compatibility
Define flex entities.
Merge branch 'pr/3' into incoming
Remove mentions to from/import in documentations.
Add empty english documentation.
Format `composer.json`.
Happy new year \o/.
Happy new year \o/.