CDM v5.4.2 and WebAPI v2.15 .0

What's Changed

• new build approach using make to generate SQL (DDL) by @leeevans in #15

Full Changelog: v2.2.1...v2.3.0

OMOP CDM 5.4.2

This release is based on OMOP CDM 5.4.2 DDL

What's Changed

• Upgrade to CDM v5.4 by @thisismexp in #12
• Fix issue #13 by @leeevans in #14

New Contributors

• @thisismexp made their first contribution in #12

Full Changelog: 2.2.0...v2.2.1

Initial release

Create initial release using existing tagged version