Feature download only (#810)

* Added initial version of DOWNLOAD_ONLY
* Added DOWNLOAD_ONLY option to ActionTypeOptionGroupLayout
* Removed DOWNLOAD_ONLY checkbox, added Download Only UI option
* Mark actions that finished with DOWNLOADED as finished
* initial changes to realize downoadOnly in UI
* Changed method of disabling maintenanceWindow into smarter solution
* Added new icon for download only option
* Set DistributionSet as unassigned when DOWNLOAD_ONLY
* Enabled update action status for DOWNLOAD_ONLY after download
* Current state of abstraction task
* Assign DistributionSet to target if target installs it after downloading
* Abstracted class redundant methods
* Added tests
* Fixed Rollout finish status for DWONLOAD_ONLY Rollouts
* Added Rollout type json property in test documentation
* Added DOWNLOAD_ONLY test for target assignment
* Added event listener also to DistributionTable
* Fixed event listener problem
* Change column name to "Type" and added also DownloadOnly icon to that column.
* Cleanup
* Center aligned the icons in type column
* Fixed DistributionSet already assigned but not installed
* Rename download_only to downloadonly
* Further changes regarding center aligned the icons
* Fixed target assign status in Rollout view when download_only
* Fixed SonarQube issues
* Fixed SonarQube issues + code formatting
* Fixed Tests
* Marked squid:S128 as suppressed - irrelevant
* Adapting rollouts view by additional column (not finished by now)
* Putted type column on proper position
* Trying to display icons in new type column in rollouts view
* Added icon also for soft, icon might change -> just change
* createOptionGroup method in ActionTypeOptionGroupLayout class
* added first draft of type column in rollouts view
* increase visibility of sendUpdateMessageToTarget method
* Ground functionality of new type column in deployment view is now implemented
* Type column implementation in rollouts view is finished for now
* Rebased on master
* Fixed DurationControl change on ScheduleControl change.
* (Re)Added Soft deployment Icon
* Fixed SonarQube issues
* Fixed SonarQube issues
* Fixed failing test
* Fixes + added missing header
* Added message to the fail() instruction
* Fixed copyright header
* Apply suggestions from code review
* Fixed TotalTargetCountStatus.java
* Removed unused method from TotalTargetCountStatus.java
* add id to rollout create and update UI popup
* Added download_only tests for MgmtTargetResourceTest.java
* added missing header in TotalTargetCountStatusTest.java
* Rename because of newest changes
* added Download_Only dmf integration tests
* Renamed MgmtAction.forcedType to actionType
* renamed actionType to forceType for Mgmt API
* added missing javadocs for public methods
* Added Download Only support for AutoAssignment

Signed-off-by: Ahmed Sayed <ahmed.sayed@bosch-si.com>
Signed-off-by: Ammar Bikic <ammar.bikic@bosch-si.com>

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

@@ -165,7 +165,9 @@ label.active = Active
 label.action.id = Action Id
 label.no.tag = NO TAG
 label.action.forced = Forced
+label.action.type = Type
 label.action.soft = Soft
+label.action.downloadonly = Download Only
 label.action.time.forced = Time Forced
 label.dist.details.type = Type : 
 label.dist.details.name = Name : 
@@ -218,6 +220,7 @@ label.cancelled = Cancelled
 label.cancelling = Canceling
 label.retrieved = Retrieved
 label.download = Downloading
+label.downloaded = Downloaded
 label.unknown = Unknown
 label.target.id = Controller Id : 
 label.target.ip = Controller IP : 
@@ -283,6 +286,7 @@ tooltip.status.overdue = Overdue
 tooltip.delete.module = Select and delete Software Module
 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.downloadonly.item=Device is supposed to only download the update and not install it
 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}
@@ -409,6 +413,7 @@ message.forcequit.action = Force Quit..
 message.forcequit.action.success = Action has been force quit successfully !
 message.forcequit.action.failed = Force Quitting the action is not possible ! 
 message.forcequit.action.confirm = Attention!\nForce quit should only be used when the assignment action is not working properly.\nForce quitting an action has no effect on the connected target. It is just resetting \nthe data stored on the SP update server. \nAre you absolutely sure you want to force quit this action? 
+message.downloadonly.action = DownloadOnly
 message.distribution.no.update = distribution {0} set is already assigned to targets and cannot be changed
 message.action.not.allowed = Action not allowed
 message.action.did.not.work = Action did not work. Please try again.
@@ -570,6 +575,7 @@ header.name = Name
 header.vendor = Vendor
 header.version = Version
 header.description = Description
+header.type = Type
 header.createdBy = Created By
 header.createdDate = Created Date
 header.modifiedBy = Modified By