Move sdk structs to modules/structs (#6905)

* move sdk structs to moduels/structs

* fix tests

* fix fmt

* fix swagger

* fix vendor

modules/structs/user_app.go

@@ -0,0 +1,34 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package structs
+
+import (
+	"encoding/base64"
+)
+
+// BasicAuthEncode generate base64 of basic auth head
+func BasicAuthEncode(user, pass string) string {
+	return base64.StdEncoding.EncodeToString([]byte(user + ":" + pass))
+}
+
+// AccessToken represents an API access token.
+// swagger:response AccessToken
+type AccessToken struct {
+	ID             int64  `json:"id"`
+	Name           string `json:"name"`
+	Token          string `json:"sha1"`
+	TokenLastEight string `json:"token_last_eight"`
+}
+
+// AccessTokenList represents a list of API access token.
+// swagger:response AccessTokenList
+type AccessTokenList []*AccessToken
+
+// CreateAccessTokenOption options when create access token
+// swagger:parameters userCreateToken
+type CreateAccessTokenOption struct {
+	Name string `json:"name" binding:"Required"`
+}