Add overloads for different `params` types

[marcinjahn]

It'd be great to have overloads with support for params Span<T>. More info in https://devblogs.microsoft.com/dotnet/csharp13-calling-methods-is-easier-and-faster/.

[viceroypenguin]

@marcinjahn Do you have an example of a method in MoreLINQ that would benefit from this? As far as I can tell, there aren't any methods that receive params values that would be useful to have Span<T> version.