tests: Check glm into source control to make Windows build simpler
diff --git a/libs/glm/gtx/string_cast.hpp b/libs/glm/gtx/string_cast.hpp
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+++ b/libs/glm/gtx/string_cast.hpp
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+///////////////////////////////////////////////////////////////////////////////////
+/// OpenGL Mathematics (glm.g-truc.net)
+///
+/// Copyright (c) 2005 - 2014 G-Truc Creation (www.g-truc.net)
+/// Permission is hereby granted, free of charge, to any person obtaining a copy
+/// of this software and associated documentation files (the "Software"), to deal
+/// in the Software without restriction, including without limitation the rights
+/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+/// copies of the Software, and to permit persons to whom the Software is
+/// furnished to do so, subject to the following conditions:
+///
+/// The above copyright notice and this permission notice shall be included in
+/// all copies or substantial portions of the Software.
+///
+/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+/// THE SOFTWARE.
+///
+/// @ref gtx_string_cast
+/// @file glm/gtx/string_cast.hpp
+/// @date 2008-04-26 / 2011-06-07
+/// @author Christophe Riccio
+///
+/// @see core (dependence)
+/// @see gtc_half_float (dependence)
+/// @see gtx_integer (dependence)
+/// @see gtx_quaternion (dependence)
+///
+/// @defgroup gtx_string_cast GLM_GTX_string_cast
+/// @ingroup gtx
+///
+/// @brief Setup strings for GLM type values
+///
+/// <glm/gtx/string_cast.hpp> need to be included to use these functionalities.
+/// This extension is not supported with CUDA
+///////////////////////////////////////////////////////////////////////////////////
+
+#ifndef GLM_GTX_string_cast
+#define GLM_GTX_string_cast
+
+// Dependency:
+#include "../glm.hpp"
+#include "../gtx/integer.hpp"
+#include "../gtx/quaternion.hpp"
+#include <string>
+
+#if(GLM_COMPILER & GLM_COMPILER_CUDA)
+# error "GLM_GTX_string_cast is not supported on CUDA compiler"
+#endif
+
+#if(defined(GLM_MESSAGES) && !defined(GLM_EXT_INCLUDED))
+# pragma message("GLM: GLM_GTX_string_cast extension included")
+#endif
+
+namespace glm
+{
+ /// @addtogroup gtx_string_cast
+ /// @{
+
+ /// Create a string from a GLM type value.
+ /// @see gtx_string_cast extension.
+ template <typename genType>
+ GLM_FUNC_DECL std::string to_string(genType const & x);
+
+ /// @}
+}//namespace glm
+
+#include "string_cast.inl"
+
+#endif//GLM_GTX_string_cast