Started to merge @ZobyTwo cmake branch

thirdparty/Boost/boost/iterator/detail/any_conversion_eater.hpp

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+// Copyright David Abrahams 2003. 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)
+#ifndef ANY_CONVERSION_EATER_DWA20031117_HPP
+# define ANY_CONVERSION_EATER_DWA20031117_HPP
+
+namespace boost { namespace detail {
+
+// This type can be used in traits to "eat" up the one user-defined
+// implicit conversion allowed.
+struct any_conversion_eater
+{
+    template <class T>
+    any_conversion_eater(T const&);
+};
+
+}} // namespace boost::detail
+
+#endif // ANY_CONVERSION_EATER_DWA20031117_HPP