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/Foundation/include/Poco/Config.h

@@ -0,0 +1,202 @@
+//
+// Config.h
+//
+// Library: Foundation
+// Package: Core
+// Module:  Foundation
+//
+// Feature configuration for the POCO libraries.
+//
+// Copyright (c) 2006-2016, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#ifndef Foundation_Config_INCLUDED
+#define Foundation_Config_INCLUDED
+
+
+// Define to disable implicit linking
+// #define POCO_NO_AUTOMATIC_LIBS
+
+
+// Define to disable automatic initialization
+// Defining this will disable ALL automatic
+// initialization framework-wide (e.g. Net
+// on Windows, all Data back-ends, etc).
+//
+// #define POCO_NO_AUTOMATIC_LIB_INIT
+
+
+// Define to disable FPEnvironment support
+// #define POCO_NO_FPENVIRONMENT
+
+
+// Define if std::wstring is not available
+// #define POCO_NO_WSTRING
+
+
+// Define to disable shared memory
+// #define POCO_NO_SHAREDMEMORY
+
+
+// Define if no <locale> header is available (such as on WinCE)
+// #define POCO_NO_LOCALE
+
+
+// Define to desired default thread stack size
+// Zero means OS default
+#ifndef POCO_THREAD_STACK_SIZE
+	#define POCO_THREAD_STACK_SIZE 0
+#endif
+
+
+// Define to override system-provided
+// minimum thread priority value on POSIX
+// platforms (returned by Poco::Thread::getMinOSPriority()).
+// #define POCO_THREAD_PRIORITY_MIN 0
+
+
+// Define to override system-provided
+// maximum thread priority value on POSIX
+// platforms (returned by Poco::Thread::getMaxOSPriority()).
+// #define POCO_THREAD_PRIORITY_MAX 31
+
+
+// Define to disable small object optimization. If not
+// defined, Any and Dynamic::Var (and similar optimization
+// candidates) will be auto-allocated on the stack in
+// cases when value holder fits into POCO_SMALL_OBJECT_SIZE
+// (see below).
+//
+// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+// !!! NOTE: Any/Dynamic::Var SOO will NOT work reliably   !!!
+// !!! without C++11 (std::aligned_storage in particular). !!!
+// !!! Only comment this out if your compiler has support  !!!
+// !!! for std::aligned_storage.                           !!!
+// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+//
+#ifndef POCO_ENABLE_SOO
+#define POCO_NO_SOO
+#endif
+
+
+// Small object size in bytes. When assigned to Any or Var,
+// objects larger than this value will be alocated on the heap,
+// while those smaller will be placement new-ed into an
+// internal buffer.
+#if !defined(POCO_SMALL_OBJECT_SIZE) && !defined(POCO_NO_SOO)
+	#define POCO_SMALL_OBJECT_SIZE 32
+#endif
+
+
+// Define to disable compilation of DirectoryWatcher
+// on platforms with no inotify.
+// #define POCO_NO_INOTIFY
+
+// Define to force the use of PollingDirectoryWatcher 
+// #define POCO_DW_FORCE_POLLING
+
+
+// Following are options to remove certain features
+// to reduce library/executable size for smaller
+// embedded platforms. By enabling these options,
+// the size of a statically executable can be
+// reduced by a few 100 Kbytes.
+
+
+// No automatic registration of FileChannel in
+// LoggingFactory - avoids FileChannel and friends
+// being linked to executable.
+// #define POCO_NO_FILECHANNEL
+
+
+// No automatic registration of SplitterChannel in
+// LoggingFactory - avoids SplitterChannel being
+// linked to executable.
+// #define POCO_NO_SPLITTERCHANNEL
+
+
+// No automatic registration of SyslogChannel in
+// LoggingFactory - avoids SyslogChannel being
+// linked to executable on Unix/Linux systems.
+// #define POCO_NO_SYSLOGCHANNEL
+
+
+// Define to enable MSVC secure warnings
+// #define POCO_MSVC_SECURE_WARNINGS
+
+
+// No support for INI file configurations in
+// Poco::Util::Application.
+// #define POCO_UTIL_NO_INIFILECONFIGURATION
+
+
+// No support for JSON configuration in
+// Poco::Util::Application. Avoids linking of JSON
+// library and saves a few 100 Kbytes.
+// #define POCO_UTIL_NO_JSONCONFIGURATION
+
+
+// No support for XML configuration in
+// Poco::Util::Application. Avoids linking of XML
+// library and saves a few 100 Kbytes.
+// #define POCO_UTIL_NO_XMLCONFIGURATION
+
+
+// No IPv6 support
+// Define to disable IPv6
+// #define POCO_NET_NO_IPv6
+
+
+// Windows CE has no locale support
+#if defined(_WIN32_WCE)
+	#define POCO_NO_LOCALE
+#endif
+
+
+// Enable the poco_debug_* and poco_trace_* macros
+// even if the _DEBUG variable is not set.
+// This allows the use of these macros in a release version.
+// #define POCO_LOG_DEBUG
+
+
+// OpenSSL on Windows
+//
+// Poco has its own OpenSSL build system.
+// See <https://github.com/pocoproject/openssl/blob/master/README.md>
+// for details.
+//
+// These options are Windows only.
+//
+// To disable the use of Poco-provided OpenSSL binaries,
+// define POCO_EXTERNAL_OPENSSL.
+//
+// Possible values:
+//   POCO_EXTERNAL_OPENSSL_SLPRO:
+//     Automatically link OpenSSL libraries from OpenSSL Windows installer provided
+//     by Shining Light Productions <http://slproweb.com/products/Win32OpenSSL.html>
+//     The (global) library search path must be set accordingly.
+//   POCO_EXTERNAL_OPENSSL_DEFAULT:
+//     Automatically link OpenSSL libraries from standard OpenSSL Windows build.
+//     The (global) library search path must be set accordingly.
+//   empty or other value:
+//     Do not link any OpenSSL libraries automatically. You will have to edit the
+//     Visual C++ project files for Crypto and NetSSL_OpenSSL.
+#ifndef POCO_EXTERNAL_OPENSSL
+	#define POCO_EXTERNAL_OPENSSL POCO_EXTERNAL_OPENSSL_SLPRO
+#endif
+
+
+// Define to prevent changing the suffix for shared libraries
+// to "d.so", "d.dll", etc. for _DEBUG builds in Poco::SharedLibrary.
+// #define POCO_NO_SHARED_LIBRARY_DEBUG_SUFFIX
+
+
+// Disarm POCO_DEPRECATED macro.
+// #define POCO_NO_DEPRECATED
+
+
+#endif // Foundation_Config_INCLUDED