Added user_info_id_trigger

Added user_info_id_trigger to database.user_info.changelog-1.0.xml by
using the liquibase-oracle-3.0.0.jar extension.
More info about it can be found on
https://liquibase.jira.com/wiki/display/CONTRIB/Oracle+Extensions.
The extensions library is added in folder
lib\extensions\liquibase-oracle . The execute_liquibase_update.bat file
and liquibase.properties file are altered to make them capable of using
the extension.