Batch Order cancellation for spot and derivatives

[albertchon]

The UI should allow the trader to cancel all of his open orders in a given market on the trading page. Eventually on the portfolio page, we should add a button allowing the trader to cancel all his open orders across all markets.

The new Msg types to batch cancel orders are MsgBatchCancelDerivativeOrders and MsgBatchCancelSpotOrders which are defined as follows:

// MsgBatchCancelDerivativeOrders defines the Msg/CancelDerivativeOrders response type.
type MsgBatchCancelDerivativeOrders struct {
	Sender string      
	Data   []OrderData 
}

and

// MsgBatchCancelSpotOrders defines the Msg/BatchCancelSpotOrders response type.
type MsgBatchCancelSpotOrders struct {
	Sender string      
	Data   []OrderData 
}

where the OrderData is defined as:

type OrderData struct {
	MarketId     string 
	SubaccountId string 
	OrderHash    string 
}

[albertchon]

Add a "Cancel All" button on the orders panel that cancels all orders from the current market.