Allows the EPSG database to be used with the HSQL Java database as an Authority for GeoTools CRS generation. At the difference of `epsg-access` and `epsg-postgresql`, the `epsg-hsql` plugin contains a copy of the EPSG database. This plugin can work "out of the box" without any specifial action on the user side.

### For More Information

The following links will prove useful:

- HSQL - instructions for module maintainers
- www.epsg.org