Features for testing RLS

Summary

In this first release of the Test Database Builder for java we added the required functions to support the integration tests in our Row Level Security repository.

• Create connection definitions
• Create users
• Grant system and object privileges to users
• Create schemas
• Create and populate tables
• Create adapter scripts
• Create virtual schemas

Changes

• #1: Functions for RLS tests
• #5: Deployment to the Central Repository (aka. "Maven Central")