libreoffice from LibreOffice:7.4 project

需要 openSUSE Tumbleweed ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/LibreOffice:7.4/openSUSE_Tumbleweed/LibreOffice:7.4.repo
zypper refresh
zypper install libreoffice

需要 openSUSE Leap 15.5 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/LibreOffice:7.4/openSUSE_Leap_15.5/LibreOffice:7.4.repo
zypper refresh
zypper install libreoffice

需要 openSUSE Leap 15.4 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/LibreOffice:7.4/openSUSE_Leap_15.4/LibreOffice:7.4.repo
zypper refresh
zypper install libreoffice

需要 openSUSE Leap 15.3 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/LibreOffice:7.4/openSUSE_Leap_15.3/LibreOffice:7.4.repo
zypper refresh
zypper install libreoffice

需要 SLE 15 SP4 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/LibreOffice:7.4/SLE_15_SP4/LibreOffice:7.4.repo
zypper refresh
zypper install libreoffice

需要 SLE 15 SP3 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/LibreOffice:7.4/SLE_15_SP3/LibreOffice:7.4.repo
zypper refresh
zypper install libreoffice