6.0.0

Changed

• PR #44: Port API change from Thoth.Json [v6.0.0] Expose the helpers module so it can be used for custom decoders (by @weslenng)
• PR #43: Port API change from Thoth.Json [v5.1.0] Improve tree shaking for longs (by @weslenng)

Fixed

• Fix #30: Fix Decode.Auto support for StringEnum