pkgconf from home:ithod:x2go project

需要 15.6 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:ithod:x2go/15.6/home:ithod:x2go.repo
zypper refresh
zypper install pkgconf

需要 15.5 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:ithod:x2go/15.5/home:ithod:x2go.repo
zypper refresh
zypper install pkgconf

需要 15.4 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:ithod:x2go/15.4/home:ithod:x2go.repo
zypper refresh
zypper install pkgconf

需要 SLE 15 SP2 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:ithod:x2go/SLE_15_SP2/home:ithod:x2go.repo
zypper refresh
zypper install pkgconf

需要 SLE 15 SP1 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:ithod:x2go/SLE_15_SP1/home:ithod:x2go.repo
zypper refresh
zypper install pkgconf

需要 SLE 15 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:ithod:x2go/SLE_15/home:ithod:x2go.repo
zypper refresh
zypper install pkgconf

需要 SLE 12 SP5 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:ithod:x2go/SLE_12_SP5/home:ithod:x2go.repo
zypper refresh
zypper install pkgconf