include/gsl/gsl_util

#pragma once
#pragma message("This header will soon be removed. Use <gsl/util> instead of <gsl/gsl_util>")
#include "util"
renaming main logic files. Added warning message of the removal and include passthrough. Renamed includes in the source files. Ran Clang-Format (#946 ) 2020-10-29 17:38:48 -07:00			`#pragma once`
			`#pragma message("This header will soon be removed. Use <gsl/util> instead of <gsl/gsl_util>")`
quoted form of #include when GSL includes GSL files (#1030 ) 2022-01-31 22:06:42 +01:00			`#include "util"`