add refresh trigger to user profile

gradle.properties

@@ -1,3 +1,3 @@
 group = org.xbib
 name = net
-version = 4.7.0
+version = 4.8.0

net/src/main/java/org/xbib/net/UserProfile.java

@@ -21,6 +21,8 @@ public interface UserProfile {
 
     String ATTRIBUTES = "attrs";
 
+    String REFRESH = "refresh";
+
     void setUserId(String uid);
 
     String getUserId();
@@ -64,4 +66,8 @@ public interface UserProfile {
     Attributes getAttributes();
 
     Map<String, Object> asMap();
+
+    void triggerRefresh(boolean refresh);
+
+    boolean isRefreshTriggered();
 }