Add clampvalues and filldown transforms#692

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UdayPate wants to merge 2 commits into

petl-developers:masterfrom

UdayPate:feature/clamp-transform

Commits on Apr 22, 2026

Add clampvalues transform to cap numeric field values within a range
UdayPate
committed
Add filldown transform to propagate last non-None value downward
UdayPate
committed