v4.0

1. Updated to use NET 5.0
2. Fixed a bug when reading ValueTuples

v1.0.2

1. Contains a few minor performance improvements.
2. JsonBufferWriter now exposes Sequence property instead of ToSequence() method to better indicate that the lifetime of the objects is the same - i.e. the sequence should not be used after disposing the buffer writer.

v1.0

Preparing project for publishing to NuGet.