Move dead submodules in-tree

Signed-off-by: swurl <swurl@swurl.xyz>

externals/oboe/samples/RhythmGame/third_party/glm/glm.hpp

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+/// @ref core
+/// @file glm/glm.hpp
+///
+/// @defgroup core GLM Core
+///
+/// @brief The core of GLM, which implements exactly and only the GLSL specification to the degree possible.
+///
+/// The GLM core consists of @ref core_types "C++ types that mirror GLSL types" and
+/// C++ functions that mirror the GLSL functions. It also includes 
+/// @ref core_precision "a set of precision-based types" that can be used in the appropriate
+/// functions. The C++ types are all based on a basic set of @ref core_template "template types".
+///
+/// The best documentation for GLM Core is the current GLSL specification,
+/// <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.clean.pdf">version 4.2
+/// (pdf file)</a>.
+///
+/// GLM core functionnalities require <glm/glm.hpp> to be included to be used.
+///
+/// @defgroup core_types Types
+///
+/// @brief The standard types defined by the specification.
+///
+/// These types are all typedefs of more generalized, template types. To see the definition
+/// of these template types, go to @ref core_template.
+///
+/// @ingroup core
+///
+/// @defgroup core_precision Precision types
+///
+/// @brief Non-GLSL types that are used to define precision-based types.
+///
+/// The GLSL language allows the user to define the precision of a particular variable.
+/// In OpenGL's GLSL, these precision qualifiers have no effect; they are there for compatibility
+/// with OpenGL ES's precision qualifiers, where they @em do have an effect.
+///
+/// C++ has no language equivalent to precision qualifiers. So GLM provides the next-best thing:
+/// a number of typedefs of the @ref core_template that use a particular precision.
+///
+/// None of these types make any guarantees about the actual precision used.
+///
+/// @ingroup core
+///
+/// @defgroup core_template Template types
+///
+/// @brief The generic template types used as the basis for the core types. 
+///
+/// These types are all templates used to define the actual @ref core_types.
+/// These templetes are implementation details of GLM types and should not be used explicitly.
+///
+/// @ingroup core
+
+#include "detail/_fixes.hpp"
+
+#pragma once
+
+#include <cmath>
+#include <climits>
+#include <cfloat>
+#include <limits>
+#include <cassert>
+#include "fwd.hpp"
+
+#if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_MESSAGE_CORE_INCLUDED_DISPLAYED)
+#	define GLM_MESSAGE_CORE_INCLUDED_DISPLAYED
+#	pragma message("GLM: Core library included")
+#endif//GLM_MESSAGES
+
+#include "vec2.hpp"
+#include "vec3.hpp"
+#include "vec4.hpp"
+#include "mat2x2.hpp"
+#include "mat2x3.hpp"
+#include "mat2x4.hpp"
+#include "mat3x2.hpp"
+#include "mat3x3.hpp"
+#include "mat3x4.hpp"
+#include "mat4x2.hpp"
+#include "mat4x3.hpp"
+#include "mat4x4.hpp"
+
+#include "trigonometric.hpp"
+#include "exponential.hpp"
+#include "common.hpp"
+#include "packing.hpp"
+#include "geometric.hpp"
+#include "matrix.hpp"
+#include "vector_relational.hpp"
+#include "integer.hpp"