Implement `ANY` handling logic for SciTokens 1.0

[bbockelm]

In the scitokens claim documentation, the special ANY audience applies to both versions 1.0 and 2.0.

However, in the implementation, the special logic is only implemented for v2.0 tokens:

https://github.com/scitokens/scitokens-cpp/blob/master/src/scitokens_internal.h#L884-L891

This should be tweaked to cover both