Deprecation: Removal of IpScopes Plugin (OHAI-13)

Chef/Ohai 14 (April 2018) will remove the IpScopes plugin. The data returned by this plugin is almost identical to information already returned by individual network plugins, and this plugin required the inclusion of an additional gem into the Chef installation. We believe that few users were installing the gem, and users would be better served by the data returned from network plugins.