complete the observium plugin

Netdisco/lib/App/NetdiscoX/Web/Plugin/Observium.pm

@@ -0,0 +1,21 @@
+package App::NetdiscoX::Web::Plugin::Observium;
+
+use Dancer ':syntax';
+use Dancer::Plugin::DBIC;
+
+use App::Netdisco::Web::Plugin;
+
+use File::ShareDir 'dist_dir';
+use Path::Class;
+
+register_device_port_column({
+  name  => 'observium',
+  position => 'mid',
+  label => 'Traffic',
+  default => 'on',
+});
+
+register_css('observium');
+register_javascript('observium');
+
+true;