Folders: Introduce folder service function for fetching folders by org and UIDs that contain optionally the folder full path (#80716)

* Folders: Expose function for getting all org folders with specific UIDs

* Return all org folders if UIDs is empty

* Filter out not accessible folders by the user

* Modify query to optionally returning a string that contains the UIDs of all parent folders separated by slash.

pkg/services/sqlstore/migrator/sqlite_dialect.go

@@ -209,3 +209,7 @@ func (db *SQLite3) UpsertMultipleSQL(tableName string, keyCols, updateCols []str
 	)
 	return s, nil
 }
+
+func (db *SQLite3) Concat(strs ...string) string {
+	return strings.Join(strs, " || ")
+}