Use max_bytes_per_file in compaction planning

[oceanusxiv]

In #2728 I think it was stated that there might be plans to utilize this param for compaction planning. I'm not sure if this was tracked anywhere here, so I would file this here since this would be a pretty nice enhancement for me.

Compaction is almost entirely IO bound so for tables with large row sizes using this param during planning can result in substantially higher throughput (since as it stands it's unlikely to plan for more than one compaction task when row sizes are large but number of rows is relatively small).