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/Redis/src/Error.cpp

@@ -0,0 +1,39 @@
+//
+// Error.cpp
+//
+// Library: Redis
+// Package: Redis
+// Module:  Error
+//
+// Implementation of the Error class.
+//
+// Copyright (c) 2015, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#include "Poco/Redis/Error.h"
+
+
+namespace Poco {
+namespace Redis {
+
+
+Error::Error()
+{
+}
+
+
+Error::Error(const std::string& message): _message(message)
+{
+}
+
+
+Error::~Error()
+{
+}
+
+
+} } // namespace Poco::Redis