Enable manual confirmation of new registered user

When manual registration confirmation is desired (by default `false`)
create new user in the database that is *not active*. The user must then
be activated manually.

This change speeds up the process of adding new confirmed users for
Gitea instances without external auth mechanism. (Currently the option
is to manually create new user by admin.)

Author: Jiri Vlasak

routers/user/auth.go

@@ -949,7 +949,7 @@ func LinkAccountPostRegister(ctx *context.Context, cpt *captcha.Captcha, form au
 		Name:        form.UserName,
 		Email:       form.Email,
 		Passwd:      form.Password,
-		IsActive:    !setting.Service.RegisterEmailConfirm,
+		IsActive:    !(setting.Service.RegisterEmailConfirm || setting.Service.RegisterManualConfirm),
 		LoginType:   models.LoginOAuth2,
 		LoginSource: loginSource.ID,
 		LoginName:   gothUser.(goth.User).UserID,
@@ -1144,7 +1144,7 @@ func SignUpPost(ctx *context.Context, cpt *captcha.Captcha, form auth.RegisterFo
 		Name:     form.UserName,
 		Email:    form.Email,
 		Passwd:   form.Password,
-		IsActive: !setting.Service.RegisterEmailConfirm,
+		IsActive: !(setting.Service.RegisterEmailConfirm || setting.Service.RegisterManualConfirm),
 	}
 	if err := models.CreateUser(u); err != nil {
 		switch {