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/Data/src/AbstractExtraction.cpp

@@ -0,0 +1,40 @@
+//
+// AbstractExtraction.cpp
+//
+// Library: Data
+// Package: DataCore
+// Module:  AbstractExtraction
+//
+// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#include "Poco/Data/AbstractExtraction.h"
+
+
+namespace Poco {
+namespace Data {
+
+
+AbstractExtraction::AbstractExtraction(Poco::UInt32 limit,
+	Poco::UInt32 position,
+	bool bulk): 
+	_pExtractor(0), 
+	_limit(limit),
+	_position(position),
+	_bulk(bulk),
+	_emptyStringIsNull(false),
+	_forceEmptyString(false)
+{
+}
+
+
+AbstractExtraction::~AbstractExtraction()
+{
+}
+
+
+} } // namespace Poco::Data