Move sdk structs to modules/structs (#6905)

* move sdk structs to moduels/structs

* fix tests

* fix fmt

* fix swagger

* fix vendor

modules/structs/issue_comment.go

@@ -0,0 +1,35 @@
+// Copyright 2016 The Gogs 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 (
+	"time"
+)
+
+// Comment represents a comment on a commit or issue
+type Comment struct {
+	ID       int64  `json:"id"`
+	HTMLURL  string `json:"html_url"`
+	PRURL    string `json:"pull_request_url"`
+	IssueURL string `json:"issue_url"`
+	Poster   *User  `json:"user"`
+	Body     string `json:"body"`
+	// swagger:strfmt date-time
+	Created time.Time `json:"created_at"`
+	// swagger:strfmt date-time
+	Updated time.Time `json:"updated_at"`
+}
+
+// CreateIssueCommentOption options for creating a comment on an issue
+type CreateIssueCommentOption struct {
+	// required:true
+	Body string `json:"body" binding:"Required"`
+}
+
+// EditIssueCommentOption options for editing a comment
+type EditIssueCommentOption struct {
+	// required: true
+	Body string `json:"body" binding:"Required"`
+}