Fix SCardHandle on Windows x86_64 for all Card methods.

SCARDHANDLE needs to be the same size as SCARDCONTEXT which was fixed in the previous commit; it is long on Linux, int32_t on OS X, and dword* in Windows.
Unify SCardReaderState class into a single WinscardSCardReaderState.
Finish purging SCardReaderState interface.
Change WinscardLibrary to use Dword/DwordByReference instead of int/IntByReference. Delete PcscLiteLibrary and PcscLiteAdapter which are now redundant.