Integrate libwinsane into build and link into tor daemon
libwinsane: https://github.com/skeeto/scratch/tree/master/libwinsane
Would fix utf8 path handling on Windows in tor. We can probably get this working by pointing LDFLAGS/LDLIBS to the output .o file, but long term we should also patch tor with new config option (--enable-libwinsane or similar) which handles this 'correctly' on windows.