Add action column in table

Signed-off-by: SirWayne <dennis.melzer@bosch-si.com>

hawkbit-ui/src/main/resources/messages.properties

@@ -439,6 +439,12 @@ header.numberofgroups = No. of groups
 header.detail.status = Detail status
 header.total.targets = Total targets 
 
+header.action=Actions
+header.action.start=Start
+header.action.pause=Pause
+header.action.resume=Resume
+header.action.update=Edit
+
 distribution.details.header = Distribution set
 target.details.header = Target
 header.caption.mandatory = Mandatory