Support VECTOR

[Michael-A-McMahon]

The 23.4 release of Oracle Database and Oracle JDBC support a new VECTOR datatype. See: https://docs.oracle.com/en/database/oracle/oracle-database/23/vecse/create-tables-using-vector-data-type.html

ML programmers should be able to use the VECTOR datatype with Oracle R2DBC.

To fix this issue, Oracle R2DBC needs to define type codes and conversions between Java and SQL, similar to what Oracle JDBC does:
https://docs.oracle.com/en/database/oracle/oracle-database/23/jjdbc/working-with-vectors.html#GUID-827F7012-7E00-4510-8E34-1EC07D8E6359