Version1.7.1 Release

更新：
1、新增键值查看功能

说明：
oracle数据库驱动win版本使用oracle12版本编译，若oracle客户端出现不兼容，请到oracle下载客户端开发包，将oci.dll、oraociei12.dll、oraons.dll放入程序执行目录即可。

Update:
1, Added key value view function

Note:
Oracle database driver windows version use oracle12 version compilation, if the Oracle client is incompatible, please download the client development package from Oracle, put oci.dll、oraociei12.dll、oraons.dll into the program execution directory.

Compile information:
1、windows8、Qt5.12.10-mingw73_64
2、mac10.15、Qt5.12.10-clang64
3、ubuntu16.04、Qt5.12.10-gcc64