Optimize Table - Fine Grained Table Optimization

[J-Meyers]

Feature request for something similar to https://trino.io/docs/current/connector/iceberg.html#optimize

While ducklake has merge_adjacent_files it seems to operate at the catalog level and isn't fine grained at the table or partition level, also I expect that in many cases it would be benificial to do the opposite of merging adjacent, and instead to split up large parquet files into several smaller ones.

Related to #77