[geotk] geotk-3.19-geoapi-3.0 staging maven repository

[Martin Desruisseaux]

Hello all

The release candidate for Geotoolkit.org 3.19 on GeoAPI 3.0.0 (which contain 
only referencing, metadata and utilities modules) is available there:

https://oss.sonatype.org/content/repositories/orggeotoolkit-329/

If anyone which to try before I push to Maven Central repository, feedbacks are 
welcome.

     Martin