Update the possible values of NumberFormatInfo.CurrencyNegativePattern

[tarekgh]

We need to update the table mentioned in the remarks section https://docs.microsoft.com/en-us/dotnet/api/system.globalization.numberformatinfo.currencynegativepattern?view=netframework-4.8#remarks to add the new entry:

Value	Associated pattern
16	$- n

We added the support of this new format in net core 5.0