Update GLM to latest version (0.9.9.3). This includes GLM's change of matrices no longer default initializing to the identity matrix. This commit thus also includes the update of all of LearnOpenGL's code to reflect this: all matrices are now constructor-initialized to the identity matrix where relevant.

includes/glm/ext/vector_bool1.hpp

@@ -0,0 +1,30 @@
+/// @ref ext_vector_bool1
+/// @file glm/ext/vector_bool1.hpp
+///
+/// @defgroup ext_vector_bool1 GLM_EXT_vector_bool1
+/// @ingroup ext
+///
+/// Exposes bvec1 vector type.
+///
+/// Include <glm/ext/vector_bool1.hpp> to use the features of this extension.
+///
+/// @see ext_vector_bool1_precision extension.
+
+#pragma once
+
+#include "../detail/type_vec1.hpp"
+
+#if GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED)
+#	pragma message("GLM: GLM_EXT_vector_bool1 extension included")
+#endif
+
+namespace glm
+{
+	/// @addtogroup ext_vector_bool1
+	/// @{
+
+	/// 1 components vector of boolean.
+	typedef vec<1, bool, defaultp>		bvec1;
+
+	/// @}
+}//namespace glm