Created fieldDict for Oracle
Create Oracle DB Tables from fieldDict
Remove debug statements
Updated Oracle Data types
Fixed oracle problems with snmp importer
Allow to give a single file to snmp_preprocess
Removed several noisy debug messsages in db backends
Dynamic type wrapper for oracle DB

The find method returns a dictionary with the
queried values. Oracle DB does store all column
names in upper case. Case-sensitive applications
can now define a dictionary that is used
to convert the upper case values in proper column
names
Oracle fixes for snmp_preprocess.py