Allow default schedule items to be skipped by setting to 'null'

lib/App/Netdisco/Worker/Plugin/DumpConfig.pm

@@ -0,0 +1,18 @@
+package App::Netdisco::Worker::Plugin::DumpConfig;
+
+use Dancer ':syntax';
+use App::Netdisco::Worker::Plugin;
+use aliased 'App::Netdisco::Worker::Status';
+
+use Data::Printer;
+
+register_worker({ phase => 'main' }, sub {
+  my ($job, $workerconf) = @_;
+  my $extra = $job->extra;
+
+  my $config = config();
+  p ($extra ? $config->{$extra} : $config);
+  return Status->done('Dumped config');
+});
+
+true;