More client changes to remove the requirement that the server send mechanism information data along with the mechanism name in the auth.policy.

CASA-auth-token/non-java/client/mechanisms/pwd/get.c

@@ -190,6 +190,7 @@ AuthTokenIf_GetAuthToken(
    IN       const void  *pIfInstance,
    IN       const char  *pContext,
    IN       const char  *pMechInfo,
+   IN       const char  *pHostName,
    IN       void        *pCredStoreScope,
    INOUT    char        *pTokenBuf,
    INOUT    int         *pTokenBufLen)

CASA-auth-token/non-java/client/mechanisms/pwd/internal.h

@@ -59,6 +59,7 @@ AuthTokenIf_GetAuthToken(
    IN       const void        *pIfInstance,
    IN       const char        *pContext,
    IN       const char        *pMechInfo,
+   IN       const char        *pHostName,
    IN       void              *pCredStoreScope,
    INOUT    char              *pTokenBuf,
    INOUT    int               *pTokenBufLen);