add bludir goodie

scripts/README.md

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+# sgblur goodie scripts
+
+## blurdir
+
+Tool to blur all JPEG pictures found in a directory.
+
+Usage: ./blurdir directory-path
+
+Will create a "blur" directory in the original directory to store the blurred version of the pictures with the same name as original pictures.
+

scripts/blurdir

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+#! /bin/bash
+
+API=https://blur.panoramax.openstreetmap.fr/blur/
+
+cd "$1"
+mkdir -p blur
+rm -f blur/*
+ls -1 *.jpg *.JPG | /usr/bin/time -v parallel --progress --bar curl -s -X 'POST' $API -F "picture=@{}" --output "blur/{}"