CRA-593, CRA-678: Changed SetupBackgroundModel in CommonData to only use interval simboxes. Removed estimation_simbox from ReadGridFromFile ReadSegyFile.
CRA-538: Removed setting number of missing well data in BlockedLogsCommon.
CRA-678: Removed sending in both blocked_logs and bg_blocked_logs in generateBackground.
CRA-678: Removed Multizone and Multinterval functions in background.
CRA-538, CRA-678: Added blocking of wells to each interval simbox.
CRA-568, CRA-596, CRA-678: Set SetupBackground and ModelGeneral to use blocked logs for intervals.
CRA-568, CRA-678: Removed wells from Background, replaced with blocked_logs.
CRA-568, CRA-678: cleanup.
CRA-678: Removed old multizone background model from xml-reader.