Fix oci_util:to_num and uncomment test for it.
Fix oci_util:to_num and uncomment test for it.

k2informatics/erloci,k2informatics/erloci,K2InformaticsGmbH/erloci,sergej-klimenko/erloci,sergej-klimenko/erloci,sergej-klimenko/erloci,K2InformaticsGmbH/erloci,K2InformaticsGmbH/erloci,k2informatics/erloci