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_OpenSSL/include/Poco/Net/RejectCertificateHandler.h

@@ -0,0 +1,48 @@
+//
+// RejectCertificateHandler.h
+//
+// Library: NetSSL_OpenSSL
+// Package: SSLCore
+// Module:  RejectCertificateHandler
+//
+// Definition of the RejectCertificateHandler class.
+//
+// Copyright (c) 2006-2010, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#ifndef NetSSL_RejectCertificateHandler_INCLUDED
+#define NetSSL_RejectCertificateHandler_INCLUDED
+
+
+#include "Poco/Net/NetSSL.h"
+#include "Poco/Net/InvalidCertificateHandler.h"
+
+
+namespace Poco {
+namespace Net {
+
+
+class NetSSL_API RejectCertificateHandler: public InvalidCertificateHandler
+	/// A RejectCertificateHandler is invoked whenever an error 
+	/// occurs verifying the certificate. It always rejects
+	/// the certificate.
+{
+public:
+	RejectCertificateHandler(bool handleErrorsOnServerSide);
+		/// Creates the RejectCertificateHandler
+
+	virtual ~RejectCertificateHandler();
+		/// Destroys the RejectCertificateHandler.
+
+	void onInvalidCertificate(const void* pSender, VerificationErrorArgs& errorCert);
+};
+
+
+} } // namespace Poco::Net
+
+
+#endif // NetSSL_RejectCertificateHandler_INCLUDED