Adds large tests to plugin catalog metadata
Adds large tests to plugin catalog metadata

This will allow for [plugin sync](https://github.com/intelsdi-x/snap-pluginsync) to add a build status to the plugin catalog similar to what was done manually in intelsdi-x/snap@05da827

intelsdi-x/snap-plugin-publisher-graphite,intelsdi-x/snap-plugin-publisher-graphite,intelsdi-x/snap-plugin-publisher-graphite