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/NamedEvent.h

@@ -0,0 +1,94 @@
+//
+// NamedEvent.h
+//
+// Library: Foundation
+// Package: Processes
+// Module:  NamedEvent
+//
+// Definition of the NamedEvent class.
+//
+// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#ifndef Foundation_NamedEvent_INCLUDED
+#define Foundation_NamedEvent_INCLUDED
+
+
+#include "Poco/Foundation.h"
+
+
+#if defined(POCO_OS_FAMILY_WINDOWS) 
+#include "Poco/NamedEvent_WIN32U.h"
+#elif POCO_OS == POCO_OS_ANDROID
+#include "Poco/NamedEvent_Android.h"
+#elif defined(POCO_OS_FAMILY_UNIX)
+#include "Poco/NamedEvent_UNIX.h"
+#endif
+
+
+namespace Poco {
+
+
+class Foundation_API NamedEvent: public NamedEventImpl
+	/// An NamedEvent is a global synchronization object
+	/// that allows one process or thread to signal an
+	/// other process or thread that a certain event
+	/// has happened.
+	///
+	/// Unlike an Event, which itself is the unit of synchronization,
+	/// a NamedEvent refers to a named operating system resource being the
+	/// unit of synchronization.
+	/// In other words, there can be multiple instances of NamedEvent referring
+	/// to the same actual synchronization object.
+	///
+	/// NamedEvents are always autoresetting.
+	///
+	/// There should not be more than one instance of NamedEvent for
+	/// a given name in a process. Otherwise, the instances may
+	/// interfere with each other.
+{
+public:
+	NamedEvent(const std::string& name);
+		/// Creates the event.
+
+	~NamedEvent();
+		/// Destroys the event.
+
+	void set();
+		/// Signals the event.
+		/// The one thread or process waiting for the event
+		/// can resume execution.
+
+	void wait();
+		/// Waits for the event to become signalled.
+
+private:
+	NamedEvent();
+	NamedEvent(const NamedEvent&);
+	NamedEvent& operator = (const NamedEvent&);
+};
+
+
+//
+// inlines
+//
+inline void NamedEvent::set()
+{
+	setImpl();
+}
+
+
+inline void NamedEvent::wait()
+{
+	waitImpl();
+}
+
+
+} // namespace Poco
+
+
+#endif // Foundation_NamedEvent_INCLUDED