feat(rust/sedona-raster-functions): add RS_PixelAsPoint, RS_PixelAsCentroid, RS_PixelAsPolygon UDFs#614

Kontinuation merged 5 commits intoapache:mainapache/sedona-db:mainfrom

Kontinuation:pr13-rs-pixel-functionsKontinuation/sedona-db:pr13-rs-pixel-functionsCopy head branch name to clipboard