INTSAMPLES-107 - Add CoffeeService Sample to Oracle StoredProc Sample

* Add the CoffeeService Sample from the PostgreSql Stored Procedure Sample to the Oracle Stored Procedure Sample.

For reference see: https://jira.springsource.org/browse/INTSAMPLES-107
Merge pull request #89 from ghillert/INTSAMPLES-107

INTSAMPLES-107 - Add CoffeeService Sample to Oracle StoredProc Sample