[new locale] Support for zh-mo

[tarunvelli]

As both zh-mo and zh-tw use traditional chinese, I used the zh-tw file and credited its authors.

Should resolve #4949

[coveralls]

Coverage decreased (-0.03%) to 88.396% when pulling 5f59640 on tarunvelli:develop into 39f63a5 on moment:develop.

[harkue]

The zh-mo is the same as zh-tw. This is good for me. Maybe it could be merged.

[le0tan]

The zh-mo is the same as zh-tw. This is good for me. Maybe it could be merged.

Actually they are different, zh-mo uses DD/MM/YYYY instead of YYYY/MM/DD as shown in zh-tw

ref: https://www.haomeili.net/QuYuDetail?wd=5124
It is also available on the Wikipedia page of Macau (under "Date format"): https://en.wikipedia.org/wiki/Macau

[ichernev]

Close in favor of #5356