MRBS 1.12.2 等保2.0二级整改完整提交

包含：登录失败锁定、90天密码有效期、30分钟会话超时、
强制改密、登录审计日志、屏幕水印、企业背景图、
备案信息固定底部、favicon、JS空集合保护、
会话过期体验优化（403 JSON）、display_errors 关闭、
固定 key 根治 Integrity check failed 等全部改动

注意：config.inc.php/.htaccess/.user.ini 含敏感信息，
通过 .gitignore 排除，勿推送到公开仓库。

lib/chillerlan/QRCode/Detector/AlignmentPattern.php

@@ -0,0 +1,34 @@
+<?php
+/**
+ * Class AlignmentPattern
+ *
+ * @created      17.01.2021
+ * @author       ZXing Authors
+ * @author       Smiley <smiley@chillerlan.net>
+ * @copyright    2021 Smiley
+ * @license      Apache-2.0
+ */
+
+namespace chillerlan\QRCode\Detector;
+
+/**
+ * Encapsulates an alignment pattern, which are the smaller square patterns found in
+ * all but the simplest QR Codes.
+ *
+ * @author Sean Owen
+ */
+final class AlignmentPattern extends ResultPoint{
+
+	/**
+	 * Combines this object's current estimate of a finder pattern position and module size
+	 * with a new estimate. It returns a new FinderPattern containing an average of the two.
+	 */
+	public function combineEstimate(float $i, float $j, float $newModuleSize):self{
+		return new self(
+			(($this->x + $j) / 2.0),
+			(($this->y + $i) / 2.0),
+			(($this->estimatedModuleSize + $newModuleSize) / 2.0)
+		);
+	}
+
+}