Making Working orders into brackets

@BWeis
It’d be a nice feature to have the ability to convert existing Stop or limit orders into bracket orders.
This is the use case, if someone has a sell limit and would like to marry this same Sell limit order to a Stop order, or the other way around as well.
Sometimes, it is useful as if you accidentally cancel a leg of the bracket, and you’d like to re-add the leg that was cancelled by accident.
This would eliminate the need of cancelling the entire working order and creating a new OCO order.