Fix DataCollection.fileTemplate value for EPU and SerialEM.
Fix DataCollection.fileTemplate value for EPU and SerialEM.

DiamondLightSource/SynchWeb,DiamondLightSource/SynchWeb,DiamondLightSource/SynchWeb,DiamondLightSource/SynchWeb,DiamondLightSource/SynchWeb,DiamondLightSource/SynchWeb