extra bench operations to consider

[AVVS]

Hi @RafaelGSS, do you think it might be useful to have Buffer.from / Buffer.toString() / string_decoder / TextDecoder / TextEncoder be present here - these are quite common operations and tracking improvements / regressions might be beneficial

[RafaelGSS]

Sure. We just need to make sure to compare _operations _ instead of APIs. For instance, comparing Buffer.from() vs new Buffer() should be acceptable. But comparing Buffer.from(shortString) with Buffer.from(longString) should be Node.js internal benchmark responsibility.

Feel free to send a PR.