Test case is using Wa Lone (ဝ) instead of Thone Nya(၀)

[vincent-paing]

Should it convert wa lone to 0 as well? I think that could be a good use case where input method could send wa lone instead of thone nya.

https://github.com/kaungmyatlwin/myanmar-phonenumber/blob/b17f280772a7b4ddad08c4d817c2c3e15b9803df/test/test.js#L9