Move datasource scopes and actions to access control package (#46334)

* create scope provider
* move datasource actions and scopes to datasource package + add provider
* change usages to use datasource scopes and update data source name resolver to use provider
* move folder permissions to dashboard package and update usages

pkg/services/datasources/accesscontrol.go

@@ -0,0 +1,19 @@
+package datasources
+
+import "github.com/grafana/grafana/pkg/services/accesscontrol"
+
+const (
+	ActionDatasourcesRead   = "datasources:read"
+	ActionDatasourcesQuery  = "datasources:query"
+	ActionDatasourcesCreate = "datasources:create"
+	ActionDatasourcesWrite  = "datasources:write"
+	ActionDatasourcesDelete = "datasources:delete"
+	ActionDatasourcesIDRead = "datasources.id:read"
+
+	ScopeDatasourcesRoot = "datasources"
+)
+
+var (
+	ScopeDatasourcesAll      = accesscontrol.GetResourceAllScope(ScopeDatasourcesRoot)
+	ScopeDatasourcesProvider = accesscontrol.NewScopeProvider(ScopeDatasourcesRoot)
+)