feat: date field

src/Field/DateField.php

+<?php
+
+namespace WPDesk\Forms\Field;
+
+use WPDesk\Forms\Sanitizer\TextFieldSanitizer;
+
+class DateField extends BasicField {
+
+	public function __construct() {
+		parent::__construct();
+		$this->set_placeholder('YYYY-MM-DD');
+	}
+
+	public function get_type() {
+		return 'date';
+	}
+
+	public function get_template_name() {
+		return 'input-text';
+	}
+
+}