Add ISO 6709:2022 schemas to the collection

[jviotti]

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

[augmentcode]

🤖 Augment PR Summary

Summary: This PR adds JSON Schemas for ISO 6709:2022 coordinate components to the schema collection.

Changes:

• Added altitude, latitude, and longitude schemas under schemas/2020-12/iso/coordinate/2022/.
• Latitude/longitude reuse the existing SI non‑SI degree schema via $ref and constrain values to valid geographic ranges (±90, ±180).
• Altitude is represented as a numeric value (meters relative to the reference ellipsoid), allowing both positive and negative values.
• Added corresponding test suites under test/iso/coordinate/2022/ covering typical valid examples and invalid type/range cases.

Technical Notes: Schemas target JSON Schema draft 2020-12 and include repository license/link metadata via x-license and x-links.

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