New MGMT API resource for action to forced switch. (#525)

* New rest resource for action to forced switch.

Signed-off-by: kaizimmerm <kai.zimmermann@bosch-si.com>

* Utility usage for response.

Signed-off-by: kaizimmerm <kai.zimmermann@bosch-si.com>

* Raise test timeout.

Signed-off-by: kaizimmerm <kai.zimmermann@bosch-si.com>

* PUT resource for similar to GET resource.

Signed-off-by: kaizimmerm <kai.zimmermann@bosch-si.com>

hawkbit-rest-core/src/main/java/org/eclipse/hawkbit/rest/util/RestResourceConversionHelper.java

@@ -144,7 +144,7 @@ public final class RestResourceConversionHelper {
         if (ranges.isEmpty() || ranges.get(0).equals(full)) {
             LOG.debug("filename ({}) results into a full request: ", artifact.getFilename());
             handleFullFileRequest(artifact, response, file, controllerManagement, statusId, full);
-            result = new ResponseEntity<>(HttpStatus.OK);
+            result = ResponseEntity.ok().build();
         }
         // standard range request
         else if (ranges.size() == 1) {