Add gorz extension

[gorfather]

Adds gorz — read GORpipe .gorz and .gord files and write .gorz as native DuckDB tables.

GORpipe (https://github.com/gorpipe/gor) is a genomic analysis engine; .gorz is its block-compressed, genomically-ordered table format and .gord a dictionary of partition files. This extension exposes them to DuckDB:

• read_gor / read_gorz / read_gord table functions (projection + parallel scan, WHERE chrom/pos → block seek, range := 'chrN:a-b' GOR -p filter, f/ff partition-tag filters).
• Replacement scan, so FROM 'x.gorz' works directly.
• COPY (…) TO 'x.gorz' (FORMAT gorz) — write path (validates GOR order).
• Object stores via DuckDB's FileSystem (s3://… with httpfs).

Files written are read/seeked natively by gorpipe itself, and vice-versa.

• Repo: https://github.com/gorfather/duckdb-gorz @ v0.1.0
• Language: C++ · Build: cmake · License: MIT
• Built + tested against DuckDB v1.5.x (make test: 29/29 assertions pass).

[gorfather]

Hi @samansmink — gentle nudge on this one when you get a chance. The CI runs are sitting in action_required (external-fork approval). I've built and tested the extension locally against DuckDB v1.5.3 through the standard vcpkg+ninja toolchain (sqllogictests green, including a self-contained .gord bucketization test), so it should be ready for the matrix. Happy to address anything that comes up. Thanks!

[carlopi]

Thanks!