python-seqdiag from Cloud:socok8s project

需要 openSUSE Leap 15.0 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/Cloud:socok8s/openSUSE_Leap_15.0/Cloud:socok8s.repo
zypper refresh
zypper install python-seqdiag