Trigger next rollout group - backend and management API implementatio… (#1294)

* Trigger next rollout group - backend and management API implementations. Backend and management API tests.
* Trigger next rollout group - Fixed resource documentation test.
* Trigger next rollout group - Fixed resource documentation test.
* add rest docs
* Trigger next rollout group - UI changes. New button for trigger next rollout group in rollout view.
* add error test for rest api
* Trigger next rollout group - Added test for triggering next group for all rollout states.
* add confirm
* fix test
* replace DB calls
* fix translation
* fix error message

Signed-off-by: Dimitar Shterev <dimitar.shterev@bosch.io>
Signed-off-by: Stefan Klotz <stefan.klotz@bosch.io>
Co-authored-by: Stefan Klotz <stefan.klotz@bosch.io>

hawkbit-rest/hawkbit-rest-docs/src/main/asciidoc/rollout-api-guide.adoc

@@ -356,6 +356,39 @@ include::../errors/406.adoc[]
 include::../errors/429.adoc[]
 |===
 
+== POST /rest/v1/rollouts/{rolloutId}/triggerNextGroup
+
+=== Implementation Notes
+Handles the POST request of triggering the next group of a rollout within Hawkbit. Required Permission: UPDATE_ROLLOUT
+
+=== Trigger next group
+
+
+==== CURL
+
+include::{snippets}/rollouts/trigger-next-group/curl-request.adoc[]
+
+
+==== Request URL
+
+include::{snippets}/rollouts/trigger-next-group/http-request.adoc[]
+
+==== Response example
+
+include::{snippets}/rollouts/trigger-next-group/http-response.adoc[]
+
+=== Error responses
+
+|===
+| HTTP Status Code | Reason | Response Model
+include::../errors/400.adoc[]
+include::../errors/401.adoc[]
+include::../errors/403.adoc[]
+include::../errors/405.adoc[]
+include::../errors/406.adoc[]
+include::../errors/429.adoc[]
+|===
+
 == DELETE /rest/v1/rollouts/{rolloutId} 
 
 === Implementation Notes