No bsb output color

First I want to start by saying thanks for the great project and great contribution to Reason gamedev community. Thank you a lot! 🎂🎉🙌

I'm playing with different "bootstraps" and build systems around reprocessing and right now I'm trying your approach because I've felt in love with `create-react-app` in React world. I noticed that `bsb` output does not have colors. I had PR to `bsb-loader` that was fixing the same issue. It should be as easy as changing `bsb` command depending on platform. It should work without problem on macOS and Linux. Here is original PR I've done: https://github.com/reasonml-community/bs-loader/pull/29. It would be great to know what do you thing about it and if it's easy to implement.

首先检查 bsb 命令的调用方式，并将其与所引用的 bs-loader pull request #29 进行比较。验证该命令在 macOS 和 Linux 上的平台特定行为，然后确认 bsb 的输出包含颜色，同时不会破坏现有的构建流程。

由索引模型根据 Issue 内容生成。