- Removes need for bundlers to polyfill the `Buffer` class. `UInt8Array` are used instead which are native to the browser and node.
- Reduces bundle size 7.1kb gzipped and eliminates 4 runtime dependencies: `base-x`, `base64-js`, `buffer`, and `ieee754`.
BREAKING CHANGE: All methods that previously took a `Buffer` now accept a `UInt8Array`.
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Co-authored-by: Jackson Mills <jmills@ripple.com>