Move mirror to a standalone package from models (#7486)

* move mirror to a standalone package

* fix mirror address in template

* fix tests

* fix lint

* fix comment

* fix tests

* fix tests

* fix vendor

* fix fmt

* fix lint

* remove wrong file submitted

* fix conflict

* remove unrelated changes

* fix go mod

* fix tests

* clean go mod

* make vendor work

* make vendor work

* fix tests

* remove duplicated test

modules/templates/helper.go

@@ -28,6 +28,7 @@ import (
 	"code.gitea.io/gitea/modules/timeutil"
 	"code.gitea.io/gitea/modules/util"
 	"code.gitea.io/gitea/services/gitdiff"
+	mirror_service "code.gitea.io/gitea/services/mirror"
 
 	"gopkg.in/editorconfig/editorconfig-core-go.v1"
 )
@@ -233,6 +234,8 @@ func NewFuncMap() []template.FuncMap {
 			return float32(n) * 100 / float32(sum)
 		},
 		"CommentMustAsDiff": gitdiff.CommentMustAsDiff,
+		"MirrorAddress":     mirror_service.Address,
+		"MirrorFullAddress": mirror_service.AddressNoCredentials,
 	}}
 }