* include/db/oracle.php: Added new functions for Oracle support.
include/functions_db.php: Added conditional code for Oracle engine.
* pandoradb.oracle.sql: Added new db procedure "insert_id" to
retrieve PK when insert is performed.
git-svn-id: https://svn.code.sf.net/p/pandora/code/trunk@4156 c3f86ba8-e40f-0410-aaad-9ba5e7f4b01f
juanmanuelr