Enable named parameters on DB2CoreDriver

[hazzik]

Checked on IBM.Data.DB2.Core 1.2.2.100

---

How to run:

docker run -d --name db2 --privileged -p 50000:50000 -e LICENSE=accept -e DBNAME=nhdb -e DB2INST1_PASSWORD=nhibernate -e ARCHIVE_LOGS=false ibmcom/db2

<?xml version="1.0" encoding="utf-8"?>
<hibernate-configuration  xmlns="urn:nhibernate-configuration-2.2" >
	<session-factory name="NHibernate.Test">
		<property name="connection.driver_class">NHibernate.Driver.DB2CoreDriver</property>
		<property name="connection.connection_string">
			Server=localhost:50000;Database=nhdb;UID=db2inst1;PWD=nhibernate;Max Pool Size=100;Min Pool Size=10;
		</property>
		<property name="dialect">NHibernate.Dialect.DB2Dialect</property>
		<property name="show_sql">true</property>
	</session-factory>
</hibernate-configuration>