Implement Dbus updateProfile with givenName (#734)

two versions of updateProfile implemented:
- one with givenName and familyName
- one with just name

update documentation

src/main/java/org/asamk/Signal.java

@@ -101,6 +101,10 @@ public interface Signal extends DBusInterface {
 
     void updateDeviceName(String deviceName) throws Error.Failure;
 
+    void updateProfile(
+            String givenName, String familyName, String about, String aboutEmoji, String avatarPath, boolean removeAvatar
+    ) throws Error.Failure;
+
     void updateProfile(
             String name, String about, String aboutEmoji, String avatarPath, boolean removeAvatar
     ) throws Error.Failure;