Relocating the ManifestOwnersPlugin from the gradle-contacts-plugin

Relocating the ManifestOwnersPlugin from the gradle-contacts-plugin to the gradle-info-plugin.  Adding a dependency on the gradle-contacts-plugin (reversing the plugin).  

Related PRs:
https://github.com/nebula-plugins/gradle-contacts-plugin/pull/2
https://github.com/nebula-plugins/nebula-publishing-plugin/pull/11