Move api/filesys to kyaml/filesys (#3997)

* Move api/filesys to kyaml/filesys

* Add deprecated version of api/filesys with aliases to new code

* Use new kyaml/filesys package and update dependencies

* Migrate to kyaml/filesys and update dependencies

* Skip tests that break on Windows

api/internal/git/cloner.go

@@ -4,7 +4,7 @@
 package git
 
 import (
-	"sigs.k8s.io/kustomize/api/filesys"
+	"sigs.k8s.io/kustomize/kyaml/filesys"
 )
 
 // Cloner is a function that can clone a git repo.

api/internal/git/gitrunner.go

@@ -8,8 +8,8 @@ import (
 	"time"
 
 	"github.com/pkg/errors"
-	"sigs.k8s.io/kustomize/api/filesys"
 	"sigs.k8s.io/kustomize/api/internal/utils"
+	"sigs.k8s.io/kustomize/kyaml/filesys"
 )
 
 // gitRunner runs the external git binary.

api/internal/git/repospec.go

@@ -11,7 +11,7 @@ import (
 	"strings"
 	"time"
 
-	"sigs.k8s.io/kustomize/api/filesys"
+	"sigs.k8s.io/kustomize/kyaml/filesys"
 )
 
 // Used as a temporary non-empty occupant of the cloneDir