v0.3

Changelog:

• Remove pgxo:partOf
• Remove pgxo:confidence
• Add pgxo:PharmacokineticPhenotype as subclass of pgxo:Phenotype
• Add pgxo:PharmacodynamicPhenotype as subclass of pgxo:Phenotype
• Add pgxo:qualifiedVariation
• Add pgxo:qualifiedProxy
• Add ro:dependsOn
• Add ro:partOf and ro:hasPart (inverse relations)
• Add dul:Entity
• Add dul:Quality (subclass of dul:Entity)
• Add dul:hasQuality (dul:Entity -> dul:Quality)
• Add dul:hasDataValue (dul:Entity -> literal)
• Define prov:Generation as subclass of dul:Entity
• Update pgxo:PharmacogenomicRelationship subsumption axiom