currently,the APIs in the header file are not wrapped around "extern C"
requiring a user of the library in C++ to manually wrap the header in order
to link to the library in C++.
It would be nice if the header would do that so that a C++ user could do
below to use the library:
#include <pwquality.h>
instead of:
extern "C"
{
#include <pwquality.h>
}