update TREE: tools/.gitignore
更新TREE tools/.gitignore

Signed-off-by: 宋万鹏@HP-CQ42 <swpustc@mail.ustc.edu.cn>
Fix LICENSE(LGPLv3) document
修正许可证LICENSE(LGPLv3)

Signed-off-by: 宋万鹏@HP-CQ42 <swpustc@mail.ustc.edu.cn>