There was a bug in smartcard listing that was leading to be unable to open a key
with slotId != 0. When any error or skipped item was happening during listing
the code was crashing.
Some WCHAR string constant were wrong (missing \x00 at the end).
The commit also implements the NCRYPT_READER_PROPERTY property in the pkcs11 provider.
Although the official documentation claims that pszScope parameter shall be set to
NULL. In practice setting it to \\.\<reader name>\ allows to filter on the corresponding
reader.
This patch adds the NCryptEnumStorageProviders function.
It also fixes strings bugs with the compiler taking the WCHAR "Micro" string
M\x00i\x00c\x00r\x00o\x00 as
M\x00i\x0c\x00r\x00o\x00, and so generating unexpected behaviours. The solution is
to split string constants when you hit a character that is a valid hex number, so
that the compiler doesn't interpret i\x00c\x00 (ic in WCHARs) as i\x0c\x00 (weird
string).
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.
