Develop new persistence module to support RDBS

[yurem]

We need to do:

1. Generate SQL schema from Gluu schema
2. Convert ldif to sql statements during installation to insert initial data set
3. Create indexes
4. Update setup
5. Develop new persistence module for RDBS

[yurem]

Implemented in jans: https://github.com/JanssenProject/jans-orm/issues/1