Merged in feature/doc_import (pull request #177)

integration of background processor

* integration part 1

* feature working

* fix mimetype issue

api/queryAPI/controllers.go

@@ -1,6 +1,7 @@
 package queryapi
 
 import (
+	"queryorchestration/internal/backgroundtask"
 	"queryorchestration/internal/client"
 	clientupdate "queryorchestration/internal/client/update"
 	"queryorchestration/internal/collector"
@@ -36,6 +37,7 @@ type Services struct {
 type ConfigProvider interface {
 	auth.ConfigProvider
 	objectstore.ConfigProvider
+	GetBackgroundRunner() *backgroundtask.Runner
 }
 
 type Controllers struct {