Revision history for dataframe

0.1.0.0 -- 2024-02-24

Initial commit with small example

0.1.0.1 -- 2024-11-24

Added a few more dataframe operations. Notably sum and filtering logic.
Slightly better error messaging for wrong types
Another example dataset + example program.

0.1.0.2 -- 2024-11-30

Changed default string type to bytestring
Add a single-column groupBy implementation
Improved CSV IO to use mutable vectors and reduce allocations.
Multi-column groupBy operation