Cross Reference: /build/soong/ui/tracer

`Name`	`Date`	`Size`
Up to higher level directory
`Android.bp`	22-Oct-2020	`865`
`microfactory.go`	22-Oct-2020	`2.3K`
`status.go`	22-Oct-2020	`2K`
`tracer.go`	22-Oct-2020	`5.5K`