Cross Reference: /external/Microsoft-GSL/gsl

`Name`	`Date`	`Size`
Up to higher level directory
`gsl`	06-Dec-2017	`4.5K`
`gsl_assert`	06-Dec-2017	`3.1K`
`gsl_byte`	06-Dec-2017	`4.4K`
`gsl_util`	06-Dec-2017	`5.2K`
`multi_span`	06-Dec-2017	`77.9K`
`span`	06-Dec-2017	`21.2K`
`string_span`	06-Dec-2017	`28.8K`