ArtifactRepository tenant aware. (#539)

* ArtifactRepository tenant aware.

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

* No need to have this protected. Updated event to boot > 1.3

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

* Remove conditional.

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

* Remove Debug log.

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

* Cleanup

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

* Missing validation and readability.

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

* Fix test after change.

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

* Fix computation is DosFilter

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

* Fix session state on RESTful APIs.

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

* Performance improvement controllermanagement

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

* Added cross tenant test.

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

* Typos.

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

hawkbit-core/pom.xml

@@ -28,6 +28,14 @@
          <groupId>org.slf4j</groupId>
          <artifactId>slf4j-api</artifactId>
       </dependency>
+      <dependency>
+         <groupId>javax.validation</groupId>
+         <artifactId>validation-api</artifactId>
+      </dependency>
+      <dependency>
+         <groupId>org.hibernate</groupId>
+         <artifactId>hibernate-validator</artifactId>
+      </dependency>
     
       <!-- Test -->
       <dependency>