Include openssl/applink.c in windows plugin DLL

src/plugins/SSLPlugin/ssl_plugin.c

@@ -12,6 +12,9 @@
 #include <openssl/x509.h>
 #include <openssl/pem.h>
 #include <openssl/ssl.h>
+#ifdef WIN32
+#include <openssl/applink.c>
+#endif
 #include "../../proxy.h"
 #include "my_ssl.h"