Added update PO Files script

scripts/update_translations.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+pushd node_modules/ng_backoffice
+
+if [[ -d po && -f po/template.pot ]]; then
+    for f in po/*.po; do
+     msgmerge --backup=none -U "$f" po/template.pot
+     msgattrib --no-obsolete --clear-fuzzy --empty -o "$f" "$f"
+ done;
+fi