add Hessen to Pfingstsonntag and Ostersonntag

Author: ickbinhier

src/Provider/DE.php

@@ -84,11 +84,13 @@ public function getHolidaysByYear($year)
             $easter['goodFriday']->format(self::DATE_FORMAT)      => $this->createData('Karfreitag'),
             $easter['easterSunday']->format(self::DATE_FORMAT)    => $this->createData('Ostersonntag', array(
                 self::STATE_BB,
+                self::STATE_HE,
             )),
             $easter['easterMonday']->format(self::DATE_FORMAT)    => $this->createData('Ostermontag'),
             $easter['ascensionDay']->format(self::DATE_FORMAT)    => $this->createData('Christi Himmelfahrt'),
             $easter['pentecostSunday']->format(self::DATE_FORMAT) => $this->createData('Pfingstsonntag', array(
                 self::STATE_BB,
+                self::STATE_HE,
             )),
             $easter['pentecostMonday']->format(self::DATE_FORMAT) => $this->createData('Pfingstmontag'),