Release version 2.0.0 of the geo_ref_qc library, compliant implementation of all the BDQ Core Space Tests

Release version 2.0.0 of the FilteredPush geo_ref_qc library for testing data quality of spatial biodiversity data. This library provides tests for DarwinCore Event terms with those tests described with RDF metadata following the standard biodiversity data quality test descriptions in the draft BDQ Core standard, from the TDWG Biodiversity Data Quality Interest Group Task Group 2 on tests and assertions.