Refactored word hyphenation to separate class

CHANGELOG.md

data/patterns/de.php

data/patterns/en.php

data/patterns/es.php

data/patterns/fi.php

data/patterns/fr.php

data/patterns/it.php

data/patterns/nl.php

data/patterns/pl.php

data/patterns/ru.php

data/patterns/sv.php

src/Config/ConfigVariables.php

src/Hyphenator.php

src/Mpdf.php

tests/HyphenatorTest.php