getReaderNames(): handle SCARD_E_SERVICE_STOPPED on Windows
getReaderNames(): handle SCARD_E_SERVICE_STOPPED on Windows

On Windows (at least W10) when you remove the last connected reader you
get the error SCARD_E_SERVICE_STOPPED.

We can just ignore the error since a new connection will be made on next
call to getReaderNames(). See db52d271240568145be43b8d726d8a552c48c18e

LudovicRousseau/pyscard,LudovicRousseau/pyscard,LudovicRousseau/pyscard