v1.8.0 performance, improved booleans

[reececomo]

Caution

Ignore the violent commit history.

TIL you need to jest --clearCache downstream 😆

What's changed?

• Performance improvements to encoding (3x)
  • Dropped runtime type-checking - carried over from js-binary but now we'll let TypeScript be responsible for this and just be a thin wrapper over DataView.
  • Drop encode-time validation and transforms (e.g. Math.flooring ints), and defer to the underlying TypedArray behavior instead.
• Dropped Bools8, Bools16 and Bools32 in favor of Bools. If needed, you can DIY with mask() and unmask() and the raw UInt types.
• Updated Bools encoding.
• renamed scalarRound to scalround to align with Math.fround() and f16round()
• Renamed Scalar to Scalar8 to more closely align with the other fixed-length types like UInt8 and Float16.
• Dropped EncodeError and DecodeError in favor of native TypeError or TinybufError where appropriate.