ICU-22935 Add ZWG to static currency lists

[DraganBesevic]

Checklist

• Required: Issue filed: https://unicode-org.atlassian.net/browse/ICU-22935
• Required: The PR title must be prefixed with a JIRA Issue number. Example: "ICU-1234 Fix xyz"
• Required: The PR description must include the link to the Jira Issue, for example by completing the URL in the first checklist item
• Required: Each commit message must be prefixed with a JIRA Issue number. Example: "ICU-1234 Fix xyz"
• Issue accepted (done by Technical Committee after discussion)
• Tests included, if applicable
• API docs and/or User Guide docs changed or added, if applicable

Adding ZWG to few static lists.

Followed instructions in https://unicode-org.github.io/icu/processes/cldr-icu.html#5-generate-cldr-production-data-and-convert-for-icu (step 5f).

Also, based on discussion in #2961, there is no lists to update in Java, so only done in C++.

[markusicu]

Also, based on discussion in #2961, there is no lists to update in Java

Actually, based on that discussion, the table in NumericCodeData.java should be updated with the mapping between the letter code and the numeric code, if there is one.

For XCG at the time, there was no known numeric code.

For ZWG, https://en.wikipedia.org/wiki/Zimbabwean_ZiG says that the numeric code is 924.

Please add that.

[markusicu]

... and please update https://unicode-org.github.io/icu/processes/cldr-icu.html#5-generate-cldr-production-data-and-convert-for-icu as well.

[DraganBesevic]

Also, based on discussion in #2961, there is no lists to update in Java

Actually, based on that discussion, the table in NumericCodeData.java should be updated with the mapping between the letter code and the numeric code, if there is one.

For XCG at the time, there was no known numeric code.

For ZWG, https://en.wikipedia.org/wiki/Zimbabwean_ZiG says that the numeric code is 924.

Please add that.

Ooops! Should read it more carefully!

I will update it in the morning

[DraganBesevic]

NumericCodeData.java

Actually, Yoshito already updated that

74d5e6d

[markusicu]

thanks!