Added doxy modules

doc/coreModules.doxy

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+/**
+	\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",
+	\ref core_funcs "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".
+**/
+
+
+/**
+	\defgroup core_types Core GLSL Types
+	
+	\brief The standard types defined by the GLSL specification.
+	
+	These types are all typedefs of more generalized, template types. To see the definiton
+	of the equivalent template types, go to \ref core_template.
+	
+	\ingroup core
+**/
+
+/**
+	\defgroup core_precision Core 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 Core 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.
+
+	\ingroup core
+**/
+
+/**
+	\defgroup core_funcs Core GLSL Functions
+	
+	\brief The functions defined by the GLSL specification.
+
+	\ingroup core
+**/
+