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/Binding/src/Binding.cpp

@@ -0,0 +1,93 @@
+//
+// Binding.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/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;
+
+
+struct Person
+{
+	std::string name;
+	std::string address;
+	int         age;
+};
+
+
+int main(int argc, char** argv)
+{
+	// 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
+	Person person = 
+	{
+		"Bart Simpson",
+		"Springfield",
+		12
+	};
+	
+	Statement insert(session);
+	insert << "INSERT INTO Person VALUES(?, ?, ?)",
+		use(person.name),
+		use(person.address),
+		use(person.age);
+	
+	insert.execute();
+	
+	person.name    = "Lisa Simpson";
+	person.address = "Springfield";
+	person.age     = 10;
+	
+	insert.execute();
+	
+	// a simple query
+	Statement select(session);
+	select << "SELECT Name, Address, Age FROM Person",
+		into(person.name),
+		into(person.address),
+		into(person.age),
+		range(0, 1); //  iterate over result set one row at a time
+		
+	while (!select.done())
+	{
+		select.execute();
+		std::cout << person.name << " " << person.address << " " << person.age << std::endl;
+	}
+
+	// another query - store the result in a container
+	std::vector<std::string> names;
+	session << "SELECT Name FROM Person",
+		into(names),
+		now;
+		
+	for (std::vector<std::string>::const_iterator it = names.begin(); it != names.end(); ++it)
+	{
+		std::cout << *it << std::endl;
+	}
+
+	return 0;
+}