Add boost and cpprestsdk

vendor/boost/include/boost/serialization/force_include.hpp

@@ -0,0 +1,55 @@
+#ifndef BOOST_SERIALIZATION_FORCE_INCLUDE_HPP
+#define BOOST_SERIALIZATION_FORCE_INCLUDE_HPP
+
+// MS compatible compilers support #pragma once
+#if defined(_MSC_VER)
+# pragma once
+#endif
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// force_include.hpp:
+
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for updates, documentation, and revision history.
+
+#include <boost/config.hpp>
+
+// the following help macro is to guarantee that certain coded
+// is not removed by over-eager linker optimiser.  In certain cases
+// we create static objects must be created but are actually never
+// referenced - creation has a side-effect such as global registration
+// which is important to us. We make an effort to refer these objects
+// so that a smart linker won't remove them as being unreferenced.
+// In microsoft compilers, inlining the code that does the referring
+// means the code gets lost and the static object is not included
+// in the library and hence never registered.  This manifests itself
+// in an ungraceful crash at runtime when (and only when) built in
+// release mode.
+
+#if defined(BOOST_HAS_DECLSPEC) && !defined(__COMO__)
+#   define BOOST_DLLEXPORT __declspec(dllexport)
+#elif ! defined(_WIN32) && ! defined(_WIN64)
+#   if defined(__MWERKS__)
+#       define BOOST_DLLEXPORT __declspec(dllexport)
+#   elif defined(__GNUC__) && (__GNUC__ >= 3)
+#       define BOOST_USED __attribute__ ((__used__))
+#   elif defined(__IBMCPP__) && (__IBMCPP__ >= 1110)
+#       define BOOST_USED __attribute__ ((__used__))
+#   elif defined(__INTEL_COMPILER) && (BOOST_INTEL_CXX_VERSION >= 800)
+#       define BOOST_USED __attribute__ ((__used__))
+#   endif
+#endif
+
+#ifndef BOOST_USED
+#    define BOOST_USED
+#endif
+
+#ifndef BOOST_DLLEXPORT
+#    define BOOST_DLLEXPORT
+#endif
+
+#endif // BOOST_SERIALIZATION_FORCE_INCLUDE_HPP