gradle from home:phansen project

For openSUSE Slowroll run the following as root:

zypper addrepo https://download.opensuse.org/repositories/home:phansen/openSUSE_Slowroll/home:phansen.repo
zypper refresh
zypper install gradle

For 15.6 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/home:phansen/15.6/home:phansen.repo
zypper refresh
zypper install gradle

For Leap 16.0 run the following as root:

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