Re-introduce database config and DDL scripts in distro

This has been taken out of install-definitions.xml:

<!-- Database configs to docs/examples/jbpm -->
<fileset dir="@

{deploy.artifacts.dir}/resources/jbpm-jpdl-config" targetdir="${jbossInstallPath}/docs/examples/jbpm" override="true">
<include name="hibernate.cfg.hsqldb.xml"/>
<include name="hibernate.cfg.mysql.xml"/>
<include name="hibernate.cfg.postgresql.xml"/>
<include name="hibernate.cfg.oracle.xml"/>
<include name="hibernate.cfg.sybase.xml"/>
<include name="jbpm-hsqldb-ds.xml"/>
<include name="jbpm-mysql-ds.xml"/>
<include name="jbpm-postgresql-ds.xml"/>
<include name="jbpm-oracle-ds.xml"/>
<include name="jbpm-sybase-ds.xml"/>
</fileset>

<!-- Database Scripts / DDL -->
<fileset dir="@{deploy.artifacts.dir}

/resources/jbpm-db"
targetdir="${jbossInstallPath}/docs/examples/jbpm/database-scripts"
override="true"
includes="create/,drop/"/>