Expose entity link technical id in EntityLinkInfo

Author: filiphr

modules/flowable-entitylink-service-api/src/main/java/org/flowable/entitylink/api/EntityLinkInfo.java

@@ -23,6 +23,11 @@
  */
 public interface EntityLinkInfo {
 
+    /**
+     * The technical id of the entity link
+     */
+    String getId();
+
     /**
      * Returns the type of link. See for the native supported types.
      */