* Use new ConvertUtf8ToWChar, ConvertUtf8NToWChar,
ConvertUtf8ToWCharAlloc and ConvertUtf8NToWCharAlloc
* Use new ConvertWCharToUtf8, ConvertWCharNToUtf8,
ConvertWCharToUtf8Alloc and ConvertWCharNToUtf8Alloc
* Use new Stream UTF16 to/from UTF8 read/write functions
* Use new settings UTF16 to/from UTF8 read/write functions
This commit fixes various bugs that I've noticed on some windows systems with
smartcards that contains multiple certificates:
* With some drivers if you retrieve the ATR while enumerating the NCrypt keys, it seems to
confuse the NCrypt key context (and you're unable to retrieve certificate property). As
we don't use the ATR, let's remove the ATR retrieval.
* if don't give any user or domain on the command line, in settings you get User=Domain=NULL,
but if you pass /u:user, you get User="user" and Domain = ""(empty string not NULL). The
smartcard filtering by user/domain was not ready for that.
This implements the emulation for the ncrypt API and more specifically the smartcard
provider so that we can list available keys and certificates using pkcs11-helper.