add ContentType FILESIZE to docview

entity/Document_entity/Document_entity.aod

@@ -40,6 +40,7 @@
       <name>SIZE</name>
       <title>Dateigröße</title>
       <fieldName>FILESIZE</fieldName>
+      <contentType>FILESIZE</contentType>
       <state>READONLY</state>
     </entityField>
     <entityField>