add localization to UI items (#804)

Signed-off-by: Stefan Klotz <stefan.klotz@bosch-si.com>

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

@@ -281,9 +281,11 @@ tooltip.status.error = Error
 tooltip.status.insync = In-sync
 tooltip.status.overdue = Overdue
 tooltip.delete.module = Select and delete Software Module
-tooltip.forced.item=Forced update action
-tooltip.soft.item=Soft update action which interacts with an user as a attempt update action for example
-tooltip.timeforced.item=Soft update until a specific time and then the action will be forced
+tooltip.forced.item=Device is supposed to install the update immediately
+tooltip.soft.item=Device can execute the update at any time, e.g. with user approval or according to its regular update time plan
+tooltip.timeforced.item=Soft update which turns into a forced update after a specific time
+tooltip.timeforced.forced.in=Auto forcing in {0}
+tooltip.timeforced.forced.since=Auto forced since {0}
 tooltip.check.for.mandatory=Check to make Mandatory
 tooltip.artifact.icon=Show Artifact Details
 tooltip.click.to.edit = Click to edit
@@ -302,6 +304,19 @@ tooltip.rollout.copy = Copy..
 tooltip.delete = Delete..
 tooltip.overdue = Overdue for {0}
 
+#rollout status
+tooltip.rollout.status.creating=Creating
+tooltip.rollout.status.waiting_for_approval=Waiting for approval
+tooltip.rollout.status.approval_denied=Approval denied
+tooltip.rollout.status.ready=Ready
+tooltip.rollout.status.paused=Paused
+tooltip.rollout.status.starting=Starting
+tooltip.rollout.status.stopped=Stopped
+tooltip.rollout.status.running=Running
+tooltip.rollout.status.finished=Finished
+tooltip.rollout.status.deleting=Deleting
+tooltip.rollout.status.deleted=Deleted
+
 tooltip.close = Close
 tooltip.search = Search
 tooltip.save = Save
@@ -560,6 +575,7 @@ header.createdDate = Created Date
 header.modifiedBy = Modified By
 header.modifiedDate = Modified Date
 header.delete = Delete
+header.maintenancewindow = Maintenance Window
 header.assigned.ds = Assigned DS
 header.installed.ds = Installed DS
 header.target.status = Status