bbswitch from X11:Bumblebee project

需要 openSUSE Tumbleweed ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/X11:Bumblebee/openSUSE_Tumbleweed/X11:Bumblebee.repo
zypper refresh
zypper install bbswitch

需要 openSUSE Leap 15.2 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/X11:Bumblebee/openSUSE_Leap_15.2/X11:Bumblebee.repo
zypper refresh
zypper install bbswitch

需要 openSUSE Leap 15.1 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/X11:Bumblebee/openSUSE_Leap_15.1/X11:Bumblebee.repo
zypper refresh
zypper install bbswitch

需要 openSUSE Factory ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/X11:Bumblebee/openSUSE_Factory/X11:Bumblebee.repo
zypper refresh
zypper install bbswitch

需要 Kernel stable standard ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/X11:Bumblebee/Kernel_stable_standard/X11:Bumblebee.repo
zypper refresh
zypper install bbswitch

需要 15.6 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/X11:Bumblebee/15.6/X11:Bumblebee.repo
zypper refresh
zypper install bbswitch

需要 15.5 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/X11:Bumblebee/15.5/X11:Bumblebee.repo
zypper refresh
zypper install bbswitch

需要 15.4 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/X11:Bumblebee/15.4/X11:Bumblebee.repo
zypper refresh
zypper install bbswitch