Add getter methods to BackupManager

This is so that access to the other managers can be obtained to be able to change some of their properties via the needed methods. Usefull when BackupManager is injected into another service that wants to change some of the defaults for a single instance.

Manager/BackupManager.php

@@ -86,4 +86,19 @@ public function execute()
 
         return $successful;
     }
+
+    public function getClientManager()
+    {
+        return $this->cm;
+    }
+
+    public function getDatabaseManager()
+    {
+        return $this->dbm;
+    }
+
+    public function getProcessorManager()
+    {
+        return $this->processor;
+    }
 }