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/samples/Tuple/src/Tuple.cpp

@@ -0,0 +1,68 @@
+//
+// Tuple.cpp
+//
+// This sample demonstrates the Data library.
+//
+// Copyright (c) 2008, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+
+
+#include "Poco/SharedPtr.h"
+#include "Poco/Tuple.h"
+#include "Poco/Data/SessionFactory.h"
+#include "Poco/Data/Session.h"
+#include "Poco/Data/SQLite/Connector.h"
+#include <vector>
+#include <iostream>
+
+
+using namespace Poco::Data::Keywords;
+using Poco::Data::Session;
+using Poco::Data::Statement;
+
+
+int main(int argc, char** argv)
+{
+	typedef Poco::Tuple<std::string, std::string, int> Person;
+	typedef std::vector<Person> People;
+
+	// register SQLite connector
+	Poco::Data::SQLite::Connector::registerConnector();
+
+	// create a session
+	Session session("SQLite", "sample.db");
+
+	// drop sample table, if it exists
+	session << "DROP TABLE IF EXISTS Person", now;
+	
+	// (re)create table
+	session << "CREATE TABLE Person (Name VARCHAR(30), Address VARCHAR, Age INTEGER(3))", now;
+	
+	// insert some rows
+	People people;
+	people.push_back(Person("Bart Simpson",	"Springfield", 12));
+	people.push_back(Person("Lisa Simpson",	"Springfield", 10));
+	
+	Statement insert(session);
+	insert << "INSERT INTO Person VALUES(:name, :address, :age)",
+		use(people), now;
+	
+	people.clear();
+
+	// a simple query
+	Statement select(session);
+	select << "SELECT Name, Address, Age FROM Person",
+		into(people),
+		now;
+	
+	for (People::const_iterator it = people.begin(); it != people.end(); ++it)
+	{
+		std::cout << "Name: " << it->get<0>() << 
+			", Address: " << it->get<1>() << 
+			", Age: " << it->get<2>() <<std::endl;
+	}
+
+	return 0;
+}