Feature: Add support to check whether an exchange supports automatic currency pair updates and if they don't, show a warning if the last currency pair update is >= 30 days

Also fix race condition in config get/set functions

exchanges/itbit/itbit.go

@@ -49,6 +49,7 @@ func (i *ItBit) SetDefaults() {
 	i.ConfigCurrencyPairFormat.Delimiter = ""
 	i.ConfigCurrencyPairFormat.Uppercase = true
 	i.AssetTypes = []string{ticker.Spot}
+	i.SupportsAutoPairUpdating = false
 }
 
 // Setup sets the exchange parameters from exchange config
@@ -73,6 +74,10 @@ func (i *ItBit) Setup(exch config.ExchangeConfig) {
 		if err != nil {
 			log.Fatal(err)
 		}
+		err = i.SetAutoPairDefaults()
+		if err != nil {
+			log.Fatal(err)
+		}
 	}
 }