Major plugin refactor and cleanup.

Switched to POCO library for unified platform/library interface.
Deprecated the external module API. It was creating more problems than solving.
Removed most built-in libraries in favor of system libraries for easier maintenance.
Cleaned and secured code with help from static analyzers.

vendor/POCO/NetSSL_Win/include/Poco/Net/AcceptCertificateHandler.h

@@ -0,0 +1,52 @@
+//
+// AcceptCertificateHandler.h
+//
+// Library: NetSSL_Win
+// Package: SSLCore
+// Module:  AcceptCertificateHandler
+//
+// Definition of the AcceptCertificateHandler class.
+//
+// Copyright (c) 2006-2014, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#ifndef NetSSL_AcceptCertificateHandler_INCLUDED
+#define NetSSL_AcceptCertificateHandler_INCLUDED
+
+
+#include "Poco/Net/NetSSL.h"
+#include "Poco/Net/InvalidCertificateHandler.h"
+
+
+namespace Poco {
+namespace Net {
+
+
+class NetSSL_Win_API AcceptCertificateHandler: public InvalidCertificateHandler
+	/// A AcceptCertificateHandler is invoked whenever an error 
+	/// occurs verifying the certificate. It always accepts
+	/// the certificate.
+	///
+	/// Should be using for testing purposes only.
+{
+public:
+	AcceptCertificateHandler(bool handleErrorsOnServerSide);
+		/// Creates the AcceptCertificateHandler
+
+	virtual ~AcceptCertificateHandler();
+		/// Destroys the AcceptCertificateHandler.
+
+	void onInvalidCertificate(const void* pSender, VerificationErrorArgs& errorCert);
+		/// Receives the questionable certificate in parameter errorCert. If one wants to accept the
+		/// certificate, call errorCert.setIgnoreError(true).
+};
+
+
+} } // namespace Poco::Net
+
+
+#endif // NetSSL_AcceptCertificateHandler_INCLUDED