GL_EXT_debug_label
http://www.opengl.org/registry/specs/EXT/EXT_debug_label.txt
GL_EXT_debug_label
	GL_PROGRAM_PIPELINE_OBJECT_EXT 0x8A4F
	GL_PROGRAM_OBJECT_EXT 0x8B40
	GL_SHADER_OBJECT_EXT 0x8B48
	GL_BUFFER_OBJECT_EXT 0x9151
	GL_QUERY_OBJECT_EXT 0x9153
	GL_VERTEX_ARRAY_OBJECT_EXT 0x9154
	void glGetObjectLabelEXT (GLenum type, GLuint object, GLsizei bufSize, GLsizei* length, GLchar *label)
	void glLabelObjectEXT (GLenum type, GLuint object, GLsizei length, const GLchar* label)
