Method [isHaraka](https://github.com/alhoqbani/i18n/blob/91b7378ec063ad295274c505beb772c356c69452/Arabic/Normalise.php#L341) and [isTashkeel](https://github.com/alhoqbani/i18n/blob/91b7378ec063ad295274c505beb772c356c69452/Arabic/Normalise.php#L320) are closely similar. The only difference is that `isHaraka` does not include SHADDA. Do we need them both?