added daterange-picker and localized date-inputs (#540)

src/Form/Model/DateRange.php

@@ -0,0 +1,62 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Form\Model;
+
+use DateTime;
+
+class DateRange
+{
+    /**
+     * @var DateTime
+     */
+    protected $begin;
+    /**
+     * @var DateTime
+     */
+    protected $end;
+
+    /**
+     * @return DateTime
+     */
+    public function getBegin(): ?DateTime
+    {
+        return $this->begin;
+    }
+
+    /**
+     * @param DateTime $begin
+     * @return DateRange
+     */
+    public function setBegin(DateTime $begin)
+    {
+        $this->begin = $begin;
+
+        return $this;
+    }
+
+    /**
+     * @return DateTime
+     */
+    public function getEnd(): ?DateTime
+    {
+        return $this->end;
+    }
+
+    /**
+     * @param DateTime $end
+     * @return DateRange
+     */
+    public function setEnd(DateTime $end)
+    {
+        $this->end = $end;
+
+        return $this;
+    }
+}