Use nestedloopjoin to replace HashJoin if build side is small

[xudong963]

Summary
https://duckdb.org/docs/stable/configuration/overview.html

There is a nested_loop_join_threshold, if build side size is < nested_loop_join_threshold, it'll transfer to nestedloopjoin to get better performance.

I'm not sure if databend has the feature; if not, it's worth trying and doing some benchmarking.