TP5 验证两次输入密码是否一致

增加了字段自动匹配验证规则，如password和password_confirm是自动相互验证的，只需要使用

"password"=>"require|confirm"

例子：html

<input type="password" name="password" required lay-verify="required" placeholder="请输入密码" autocomplete="off" class="layui-input">

 <input type="password" name="password_confirm" required lay-verify="required" placeholder="请输入密码" autocomplete="off" class="layui-input">

TP5代码:"password"=>"require|confirm",

					$validate = new Validate([
					        "type"  => "require",
							"username"  => "require|max:8",
							"tel"  => "require|max:8",
							"nickname"=>"chs",
							"tel"=>"number|length:11",
							"qq"=>"number",
							"password"=>"require|confirm",
							"email" => "email"
                       ]);

官方文档：https://www.kancloud.cn/manual/thinkphp5/129356