• Add Query.findUnique() to find a single object matching the query.
• Add support for relations when using 3rd-party JSON serialization libraries.
• Fix generator when mixing backlinks and "standard" relations in the same entity (generated code had a syntax error).
• Fix @Backlink() annotation when specifying a ToOne relation by field name.
• Fix Query.find*() exception forwarding when a user-provided property converter throws.
• Increase supported analyzer dependency version to include v2.x major version.
• Update FlatBuffer dependency to the latest upstream version.