killpg：给进程组发信号
waitid：等待进程结束
修改测试用例到full里面

Change-Id: Ice058ab4a6eede8ecbaacea0894c2161e3b9dce2
Signed-off-by: Nwjj <502004968@qq.com>

1, for users with privilege, display all users' fd info with the template "Pid  Fd  SysFd Path"
2, for normal user, display its own fd info with the template "Pid Fd Path"

close #I3WB5U
Signed-off-by: Nchenwei <chenwei26@huawei.com>

Change-Id: I052d930d54e63179b17b77f02c107a015f3cfc3f

Change-Id: Ia6c1f6302407a707b3ec9b805f4c92d8a7970b86