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/Foundation/include/Poco/EventArgs.h

@@ -0,0 +1,45 @@
+//
+// EventArgs.h
+//
+// Library: Foundation
+// Package: Events
+// Module:  EventArgs
+//
+// Definition of EventArgs.
+//
+// Copyright (c) 2006-2011, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#ifndef Foundation_EventArgs_INCLUDED
+#define Foundation_EventArgs_INCLUDED
+
+
+#include "Poco/Foundation.h"
+
+
+namespace Poco {
+
+
+class Foundation_API EventArgs
+	/// The purpose of the EventArgs class is to be used as parameter
+	/// when one doesn't want to send any data.
+	///
+	/// One can use EventArgs as a base class for one's own event arguments
+	/// but with the arguments being a template parameter this is not
+	/// necessary.
+{
+public:
+	EventArgs();
+	
+	virtual ~EventArgs();
+};
+
+
+} // namespace Poco
+
+
+#endif