Upgrade xorm to v1.0.0 (#10646)

* Upgrade xorm to v1.0.0

* small nit

* Fix tests

* Update xorm

* Update xorm

* fix go.sum

* fix test

* Fix bug when dump

* Fix bug

* update xorm to latest

* Fix migration test

* update xorm to latest

* Fix import order

* Use xorm tag

vendor/xorm.io/xorm/internal/utils/sql.go

@@ -0,0 +1,19 @@
+// Copyright 2020 The Xorm Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package utils
+
+import (
+	"strings"
+)
+
+func IsSubQuery(tbName string) bool {
+	const selStr = "select"
+	if len(tbName) <= len(selStr)+1 {
+		return false
+	}
+
+	return strings.EqualFold(tbName[:len(selStr)], selStr) ||
+		strings.EqualFold(tbName[:len(selStr)+1], "("+selStr)
+}