Add implementation for folder store methods (#57700)

* Add implementation for folder store methods

* Add Move implementation

* Add back comment and fix query

* Remove Move from store

* Adjust GetChildren

* Fix errutil error declaration and usage

* Add org id to get children query

pkg/services/folder/model.go

@@ -2,6 +2,8 @@ package folder
 
 import (
 	"time"
+
+	"github.com/grafana/grafana/pkg/util/errutil"
 )
 
 const (
@@ -9,6 +11,8 @@ const (
 	MaxNestedFolderDepth = 8
 )
 
+var ErrFolderNotFound = errutil.NewBase(errutil.StatusNotFound, "folder.notFound")
+
 type Folder struct {
 	ID          int64
 	OrgID       int64
@@ -87,6 +91,7 @@ type GetParentsQuery struct {
 
 type GetTreeQuery struct {
 	UID   string
+	OrgID int64
 	Depth int64
 
 	// Pagination options