[PLAT-6746] Add ojdbc7 dependency
[PLAT-6746] Add ojdbc7 dependency

Without this dependency, the db-create-tool.sh script fails when
following the Sesame deployment guide using an Oracle database, as
it can't find a suitable JDBC library to use.

jeorme/OG-Platform,jeorme/OG-Platform,jerome79/OG-Platform,nssales/OG-Platform,ChinaQuants/OG-Platform,jeorme/OG-Platform,nssales/OG-Platform,codeaudit/OG-Platform,codeaudit/OG-Platform,nssales/OG-Platform,DevStreet/FinanceAnalytics,jerome79/OG-Platform,DevStreet/FinanceAnalytics,jeorme/OG-Platform,ChinaQuants/OG-Platform,codeaudit/OG-Platform,nssales/OG-Platform,jerome79/OG-Platform,jerome79/OG-Platform,DevStreet/FinanceAnalytics,codeaudit/OG-Platform,ChinaQuants/OG-Platform,DevStreet/FinanceAnalytics,ChinaQuants/OG-Platform