Spread Attributes / Functional Update Syntax

[stoically]

• JSX is <div {...props} /> (https://zhenyong.github.io/react/docs/jsx-spread.html#spread-attributes)
• Yew went with <div ..props />, inspired by Rust's functional update syntax (https://doc.rust-lang.org/stable/reference/expressions/struct-expr.html#functional-update-syntax)

This might already be possible with the transform_block configuration, but not exactly sure yet.

[ifiokjr]

This would be very useful. Any pointers on how you were thinking of implementing it? I can submit a pull request.