Add non-SI BIPM units

[jviotti]

Signed-off-by: Juan Cruz Viotti [email protected]

[augmentcode]

🤖 Augment PR Summary

Summary: This PR expands the BIPM SI (2019) catalog by adding commonly used non‑SI units accepted for use with the SI.

Changes:

• Introduces new JSON Schema definitions under schemas/2020-12/bipm/si/2019/non-si/unit/ for: degree, arcminute, arcsecond, minute, hour, day, litre, hectare, tonne, electronvolt, dalton, and astronomical unit.
• Each unit schema includes metadata such as x-symbol and x-si-equivalent, plus examples and (where appropriate) minimum: 0 constraints.
• Adds corresponding schema test vectors under test/bipm/si/2019/non-si/unit/ to validate numeric typing and sign constraints.
• Updates the Makefile to define JQ and MKDIRP variables for tool customization in build/QA scripts.

Technical Notes: The new unit schemas follow the existing BIPM schema patterns (draft 2020-12, Sourcemeta metadata extensions) and are paired 1:1 with test files to satisfy the repository’s schema-test mirroring checks.

_{🤖 Was this summary useful? React with 👍 or 👎}

[augmentcode]

Review completed. No suggestions at this time.

Comment augment review to trigger a new review at any time.