hawkBit rest docs (management & DDI API) (#688)

* hawkBit REST docs.

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

* Fiy gitignore.

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

* Add to website.

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

* Switch to generated docs.

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

* Fix typos.

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

* Review findings.

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

* Otimizations.

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

* Revert accidental checkin.

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

* Add security link.

hawkbit-rest/hawkbit-ddi-resource/src/test/resources/ddi-test.properties

@@ -0,0 +1,25 @@
+#
+# Copyright (c) 2015 Bosch Software Innovations GmbH and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Eclipse Public License v1.0
+# which accompanies this distribution, and is available at
+# http://www.eclipse.org/legal/epl-v10.html
+#
+
+# DDI configuration - START
+hawkbit.controller.pollingTime=00:01:00
+hawkbit.controller.pollingOverdueTime=00:01:00
+hawkbit.controller.minPollingTime=00:00:30
+
+hawkbit.controller.maintenanceWindowPollCount=3
+# DDI configuration - END
+
+# Upload configuration - START
+spring.http.multipart.max-file-size=5MB
+# Upload configuration - END
+
+# Quota - START
+hawkbit.server.security.dos.maxStatusEntriesPerAction=100
+hawkbit.server.security.dos.maxAttributeEntriesPerTarget=10
+# Quota - END