fix(proj -V): keep easting/northing labels for polar projected CRSs

[SergioChan]

• AI/LLM (Copilot, ChatGPT, Claude or something similar) supported my development of this PR
• Closes proj -V swaps x and y annotations for some polar projections #4573
• Tests added
• Added clear title that can be used to generate release notes
• Fully documented, including updating docs/source/*.rst for new API

Summary

• proj -V currently decides whether to print Northing (y) first by checking whether the first projected axis direction is NORTH/SOUTH.
• Polar CRSs like EPSG:3413 can have first axis easting with direction south (because of axis meridian orientation), which causes swapped labels.
• This patch determines swapAxisCrs from first-axis metadata (name/abbreviation) instead of raw direction, so easting remains labeled as easting for EPSG:3413/3031-style CRSs.

Validation

• Could not run local build/tests in this execution environment because cmake is not installed (cmake: command not found).
• Validation here is code-path review against the issue reproducer and existing axis metadata behavior.

Related

Closes #4573