Support Punycode

[Vitaliy86]

Add support Punycode, and in block list

[d3cim]

Add support Punycode

What do you mean exactly? dnscrypt can already manage ASCII / Punycode domains.

If the Punycode syntax is used to encode internet addresses, each result string is provided with a so-called ACE prefix (short for ASCII-compatible encoding):

ACE prefix: xn--

The ACE prefix ensures that domain names containing hyphens are not misinterpreted as international domain names.

This results in the following coding for the IDN müller-büromöbel:

ACE: xn--mller-brombel-rmb4fg

and in block list

Again, are you asking for block those domains?

you can do this by add a simple rule xn--*.* in blocked-names.txt file, but I still don't understand why this choice.