libSDL2-2_0-0 from SUSE:SLE-15:Update project

对于 pool，请以根用户 root 运行下面命令：

zypper addrepo https://download.opensuse.org/repositories/SUSE:SLE-15:Update/pool/SUSE:SLE-15:Update.repo
zypper refresh
zypper install libSDL2-2_0-0