修复一些个人使用中遇到的问题

[shirok1]

高版本log4cxx自动依赖std::shared_mutex（C++17）而不是boost中的同名类型。将CMAKE_CXX_STANDARD改为17可解决。

/usr/include/log4cxx/boost-std-configuration.h:10:18: 错误：‘shared_mutex’不是命名空间‘std’中的一个类型名
   10 |     typedef std::shared_mutex shared_mutex;
      |                  ^~~~~~~~~~~~
/usr/include/log4cxx/boost-std-configuration.h:10:13: 附注：‘std::shared_mutex’ is only available from C++17 onwards
   10 |     typedef std::shared_mutex shared_mutex;
      |             ^~~

timesync.h未引用memory标准库。

~/ws_livox/src/livox_ros_driver/timesync/timesync.h:81:8: 错误：‘shared_ptr’ in namespace ‘std’ does not name a template type
   81 |   std::shared_ptr<std::thread> t_poll_state_;
      |        ^~~~~~~~~~
~/ws_livox/src/livox_ros_driver/timesync/timesync.h:33:1: 附注：‘std::shared_ptr’ is defined in header ‘<memory>’; did you forget to ‘#include <memory>’?
   32 | #include "user_uart.h"
  +++ |+#include <memory>
   33 | 

ros::Publisher、rosbag::Bag不接受指针作为输入msg。解指针。

/opt/ros/melodic/include/ros/message_traits.h:142:14: 错误：‘const class std::shared_ptr<pcl::PointCloud<pcl::PointXYZI> >’ has no member named ‘__getDataType’
  142 |     return m.__getDataType().c_str();
      |            ~~^~~~~~~~~~~~~