Release v2.1.0

Enabled Nullable Reference Types in all projects

Full Changelog: v2.0.3...v2.1.0

v2.0.3

Fix possible deserialization issues by also passing the type to serialize to the MessagePack serializer.

v2.0.2

Use contract-less resolver by default

v2.0.1

Full Changelog: v2.0.0...v2.0.1

v2.0.0

First public release