Merge branch 'pkg-size' into 'master'

Add pkg-size script

See merge request !1430

scripts/pkg-size.sh

+#!/usr/bin/env bash
+
+if [ $# = 0 ]
+then
+    find cookbook/recipes \( -name stage.pkgar -o -name stage.tar.gz \) -exec ls -hs {} \;
+    exit 0
+fi
+
+for recipe in $@
+do
+    if [ "$recipe" = "-h" ] || [ "$recipe" = "--help" ]
+    then
+        echo "Usage: $0 [recipe] ..."
+        echo "       For the recipe(s), prints the size of 'stage.pkgar' and 'stage.tar.gz'."
+        echo "       If no recipe is given, then all packages are listed."
+        exit 0
+    fi
+
+    recipe_paths=$(find cookbook/recipes -name $recipe)
+    for recipe_path in $recipe_paths
+    do
+        if [ -f "$recipe_path/recipe.toml" ] || [ -f "$recipe_path/recipe.sh" ]
+        then
+            find "$recipe_path" \( -name stage.pkgar -o -name stage.tar.gz \) -exec ls -hs {} \;
+        fi
+    done
+done
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