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/ODBC/src/ODBCException.cpp

@@ -0,0 +1,30 @@
+//
+// ODBCException.cpp
+//
+// Library: Data/ODBC
+// Package: ODBC
+// Module:  ODBCException
+//
+// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#include "Poco/Data/ODBC/ODBCException.h"
+#include <typeinfo>
+
+
+namespace Poco {
+namespace Data {
+namespace ODBC {
+
+
+POCO_IMPLEMENT_EXCEPTION(ODBCException, Poco::Data::DataException, "Generic ODBC error")
+POCO_IMPLEMENT_EXCEPTION(InsufficientStorageException, ODBCException, "Insufficient storage error")
+POCO_IMPLEMENT_EXCEPTION(UnknownDataLengthException, ODBCException, "Unknown length of remaining data")
+POCO_IMPLEMENT_EXCEPTION(DataTruncatedException, ODBCException, "Variable length character or binary data truncated")
+
+
+} } } // namespace Poco::Data::ODBC