Adds asio library and Storage Module

lib/asio-1.18.0/doc/asio/reference/is_nothrow_require.html

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+<div class="titlepage"><div><div><h3 class="title">
+<a name="asio.reference.is_nothrow_require"></a><a class="link" href="is_nothrow_require.html" title="is_nothrow_require">is_nothrow_require</a>
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+<p>
+        A type trait that determines whether a <code class="computeroutput">require</code> expression will
+        not throw.
+      </p>
+<pre class="programlisting">template&lt;
+    typename T,
+    typename... Properties&gt;
+struct is_nothrow_require
+</pre>
+<p>
+        Class template <code class="computeroutput">is_nothrow_require</code> is a trait that is derived
+        from <code class="computeroutput">true_type</code> if the expression <code class="computeroutput">asio::require(std::declval&lt;T&gt;(),
+        std::declval&lt;Properties&gt;()...)</code> is <code class="computeroutput">noexcept</code>; otherwise
+        <code class="computeroutput">false_type</code>.
+      </p>
+<h5>
+<a name="asio.reference.is_nothrow_require.h0"></a>
+        <span><a name="asio.reference.is_nothrow_require.requirements"></a></span><a class="link" href="is_nothrow_require.html#asio.reference.is_nothrow_require.requirements">Requirements</a>
+      </h5>
+<p>
+        <span class="emphasis"><em>Header: </em></span><code class="literal">asio/require.hpp</code>
+      </p>
+<p>
+        <span class="emphasis"><em>Convenience header: </em></span><code class="literal">asio.hpp</code>
+      </p>
+</div>
+<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
+<td align="left"></td>
+<td align="right"><div class="copyright-footer">Copyright © 2003-2020 Christopher M.
+      Kohlhoff<p>
+        Distributed under the Boost Software License, Version 1.0. (See accompanying
+        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
+      </p>
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