Support InvariantGlobalization / default to InvariantCulture #41
Description
When enabling InvariantGlobalization (which I believe is now the default in API/gRPC/Worker project templates), the library fails with:
System.Globalization.CultureNotFoundException : Only the invariant culture is supported in globalization-invariant mode. See https://aka.ms/GlobalizationInvariantMode for more information. (Parameter 'name')
en is an invalid culture identifier.
at System.Globalization.CultureInfo..ctor(String name, Boolean useUserOverride)
at Jeffijoe.MessageFormat.Formatting.Formatters.VariableFormatter.GetCultureInfo(String locale)
at Jeffijoe.MessageFormat.Formatting.Formatters.VariableFormatter.Format(String locale, FormatterRequest request, IReadOnlyDictionary`2 args, Object value, IMessageFormatter messageFormatter)
at Jeffijoe.MessageFormat.MessageFormatter.FormatMessage(String pattern, IReadOnlyDictionary`2 args)
Would it make sense to default to the invariant culture (empty string "") instead of "en"?
This affects static usage – with a custom instance you could simply specify the locale/culture yourself.
It's a breaking change, but worth it in my opinion.
An alternative would be to allow the locale on the default instance to be set.