(debtor was failed ethanol plant that filed Chapter 7 bankruptcy; bankruptcy trustee sought declaration against creditor that contracted corn deliveries were property of debtor's bankruptcy estate and that creditor's security interest in corn was unperfected; creditor claimed that corn was not delivered and that possession and title did not pass until corn actually weighed by debtor; creditor also claimed that it owned corn stored in bins at debtor's plant; court held that corn was property of bankruptcy estate because, under terms of contracts, delivery complete when corn physically changed hands from growers to debtor; under state (NC) law, creditor's reservation of title until corn weighed limited to security interest in corn; creditor did not perfect security interest in corn due to failure to file financing statement, and perfection did not occur via possession of corn in bins at debtor's plant that were leased to creditor; storage bins not marked so as to indicate creditor's collateral (as required by contract), hence no notice to third parties which could perfect security interest).