futures: Implement GetLatestFundingRates across exchanges (#1339)

* adds funding rate implementations and improvements

* merge fixes x1

* lint

* kucoin funding rates func make

* migrate sync-manager to keys

* some kucoin work

* adds some kucoin wrapper funcs

* ehhh, todo

* kucoin position

* start of orders

* adds the kucoin tests yay

* multiplier

* nits, EWS includes order limits

* NotYetImplemented, IsPerp improvements, cleaning

* lint, test fix, huobi time

* fixes issues, improves testing

* fixes linters I WRECKED

* local lint but remote lint, lint, lint, lint

* fixes err

* skip CI

* lint

* Supported rates, binance endpoints

* fixes weird mocktest problems

* no, CZ is invalid

* fixes some new EWS test errors

cmd/exchange_wrapper_issues/main.go

@@ -515,14 +515,14 @@ func testWrappers(e exchange.IBotExchange, base *exchange.Base, config *Config)
 				Response:   jsonifyInterface([]interface{}{""}),
 			})
 
-			fundingRateRequest := &fundingrate.RatesRequest{
+			fundingRateRequest := &fundingrate.HistoricalRatesRequest{
 				Asset:     assetTypes[i],
 				Pair:      p,
 				StartDate: time.Now().Add(-time.Hour),
 				EndDate:   time.Now(),
 			}
-			var fundingRateResponse *fundingrate.Rates
-			fundingRateResponse, err = e.GetFundingRates(context.TODO(), fundingRateRequest)
+			var fundingRateResponse *fundingrate.HistoricalRates
+			fundingRateResponse, err = e.GetHistoricalFundingRates(context.TODO(), fundingRateRequest)
 			msg = ""
 			if err != nil {
 				msg = err.Error()