Create tag on ui (#13467)

Support create single tag directly

support create tag with message from create release ui

Signed-off-by: a1012112796 <1012112796@qq.com>
Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: zeripath <art27@cantab.net>

routers/api/v1/repo/release.go

@@ -179,7 +179,7 @@ func CreateRelease(ctx *context.APIContext) {
 			IsTag:        false,
 			Repo:         ctx.Repo.Repository,
 		}
-		if err := releaseservice.CreateRelease(ctx.Repo.GitRepo, rel, nil); err != nil {
+		if err := releaseservice.CreateRelease(ctx.Repo.GitRepo, rel, nil, ""); err != nil {
 			if models.IsErrReleaseAlreadyExist(err) {
 				ctx.Error(http.StatusConflict, "ReleaseAlreadyExist", err)
 			} else {