Add sidekiq loader file

From root of foreman checkout run something along the lines of

bundle exec sidekiq -r ../foreman-tasks/bin/sidekiq-loader.rb -q default

bin/sidekiq-loader.rb

@@ -0,0 +1,20 @@
+rails_root = Dir.pwd
+
+app_file = File.expand_path('./config/application', rails_root)
+require app_file
+
+rails_env_file = File.expand_path('./config/environment.rb', rails_root)
+
+::Rails.application.dynflow.config.process_role =
+  if Sidekiq.options[:queues].include?("dynflow_orchestrator")
+    ::Rails.application.dynflow.executor!
+    :orchestrator
+  elsif (Sidekiq.options[:queues] - ['dynflow_orchestrator']).any?
+    ::Rails.application.dynflow.config.remote = true
+    :worker
+  end
+
+require rails_env_file
+::Rails.application.dynflow.initialize!
+world_id = ::Rails.application.dynflow.world.id
+STDOUT.puts("Everything ready for world: #{world_id}")