GL_SGI_color_table
http://oss.sgi.com/projects/ogl-sample/registry/SGI/color_table.txt
	GL_COLOR_TABLE_SGI 0x80D0
	GL_POST_CONVOLUTION_COLOR_TABLE_SGI 0x80D1
	GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI 0x80D2
	GL_PROXY_COLOR_TABLE_SGI 0x80D3
	GL_PROXY_POST_CONVOLUTION_COLOR_TABLE_SGI 0x80D4
	GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE_SGI 0x80D5
	GL_COLOR_TABLE_SCALE_SGI 0x80D6
	GL_COLOR_TABLE_BIAS_SGI 0x80D7
	GL_COLOR_TABLE_FORMAT_SGI 0x80D8
	GL_COLOR_TABLE_WIDTH_SGI 0x80D9
	GL_COLOR_TABLE_RED_SIZE_SGI 0x80DA
	GL_COLOR_TABLE_GREEN_SIZE_SGI 0x80DB
	GL_COLOR_TABLE_BLUE_SIZE_SGI 0x80DC
	GL_COLOR_TABLE_ALPHA_SIZE_SGI 0x80DD
	GL_COLOR_TABLE_LUMINANCE_SIZE_SGI 0x80DE
	GL_COLOR_TABLE_INTENSITY_SIZE_SGI 0x80DF
	void glColorTableParameterfvSGI (GLenum target, GLenum pname, const GLfloat* params)
	void glColorTableParameterivSGI (GLenum target, GLenum pname, const GLint* params)
	void glColorTableSGI (GLenum target, GLenum internalformat, GLsizei width, GLenum format, GLenum type, const void* table)
	void glCopyColorTableSGI (GLenum target, GLenum internalformat, GLint x, GLint y, GLsizei width)
	void glGetColorTableParameterfvSGI (GLenum target, GLenum pname, GLfloat* params)
	void glGetColorTableParameterivSGI (GLenum target, GLenum pname, GLint* params)
	void glGetColorTableSGI (GLenum target, GLenum format, GLenum type, void* table)
