Prettier ReasonML Plugin

A wrapper plugin that adds ReasonML (`.re` files) formatting support to Prettier by delegating to the `refmt` binary. Version 0.2.0 is the current stable release, with no regular cadence. Unlike AST-transforming plugins, this passes code directly to `refmt`, making it a thin integration layer. It requires `refmt` or `bsrefmt` to be installed separately, and inherits Prettier's configured options like `print-width`. Useful for ReasonML projects already using Prettier.