resource (GemPlugin::Manager)

    # File lib/gem_plugin.rb, line 196
        def resource(gem_name, path)
          if not loaded? gem_name
            raise PluginNotLoaded.new("Plugin #{gem_name} not loaded when getting resource #{path}")
          end

          file = File.join(@gems[gem_name], "resources", path)

          if File.exist? file
            return file
          else
            return nil
          end
        end