Use mattermost v5 module (#1192)

vendor/github.com/mattermost/mattermost-server/v5/model/plugins_response.go

@@ -0,0 +1,29 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package model
+
+import (
+	"encoding/json"
+	"io"
+)
+
+type PluginInfo struct {
+	Manifest
+}
+
+type PluginsResponse struct {
+	Active   []*PluginInfo `json:"active"`
+	Inactive []*PluginInfo `json:"inactive"`
+}
+
+func (m *PluginsResponse) ToJson() string {
+	b, _ := json.Marshal(m)
+	return string(b)
+}
+
+func PluginsResponseFromJson(data io.Reader) *PluginsResponse {
+	var m *PluginsResponse
+	json.NewDecoder(data).Decode(&m)
+	return m
+}