Support Non-Western Arabic Numerals as IDs

[claudiush]

When using tools, e.g. with localization active in a language that doesn't use Western Arabic Numerals (0123456789) but Persian (۰ ۱ ۲ ۳ ۴ ۵ ۶ ۷ ۸ ۹) or Eastern Arabic (See wikipedia article) ones this can result in Achavi links with IDs written in these numerals being created, e.g. https://overpass-api.de/achavi/?changeset=%DB%B1%DB%B1%DB%B8%DB%B6%DB%B2%DB%B3%DB%B3%DB%B1%DB%B7

It would be great if Achavi accepts this number format, too.

See also the bug report in the Rovas JOSM plugin
https://gitlab.com/JOSM/plugin/RovasConnector/-/issues/15