anagram: Add unicode tests

[senekor]

forum post for discussion:
https://forum.exercism.org/t/more-unicode-tests-in-problem-specifications/9347

[mvuets]

Although it's very nice to teach how to handle Unicode, now these two new tests contradict the task statement, namely:

The target and candidates are words of one or more ASCII alphabetic characters (A-Z and a-z).

Shall the file instructions.md be update accordingly as well?

[IsaacG]

Although it's very nice to teach how to handle Unicode, now these two new tests contradict the task statement, namely:

The target and candidates are words of one or more ASCII alphabetic characters (A-Z and a-z).

Shall the file instructions.md be update accordingly as well?

That's a good question to post on the linked forum topic!

[mvuets]

That's a good question to post on the linked forum topic!

Ah, the Exercism accounts are automatically synced with the Discourse forum-- how thoughtful and sweet! (-: Will post my question there too then. Thanks.