MetaEd PostgreSQL Plugin with Surrogate Key Support

[stephenfuqua]

User Story

As an Ed-Fi developer, I want to generate SQL scripts for the LMS data store from MetaEd, so that I don't have to write them by hand.

Acceptance Criteria

• Supports PostgreSQL 11+
• Output file structure is same as the ODS.
• Tables have a schema of {{lms}} instead of {{edfi}}.
• Supports integer auto-incrementing surrogate keys for all tables.