Feature: added properties to VortexScanner

[sherlockbeard]

added property to VortexScanner

fixes #5454

import vortex as vx

vx.io.write(vx.array([{"col1": "a string"}]), 'foo.vortex')
x = vx.open('foo.vortex').to_dataset().scanner().projected_schema

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.43%. Comparing base (7e1d377) to head (cb6b971).

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[codspeed-hq]

CodSpeed Performance Report

Merging #5500 will not alter performance

_{Comparing sherlockbeard:scanner_property_addition (cb6b971) with develop (7e1d377)}

Summary

✅ 1478 untouched
⏩ 235 skipped¹

Footnotes

1. 235 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

[connortsui20]

(dont worry about the lint error, thats a separate problem)