exchanges: shift GetDefaultConfig wrapper function to exchange.go (#1472)

* Shift wrapper function GetDefaultConfig to exchange.Base method definition, to ensure set defaults doesn't get called twice and to reduce code

* rm alphapoint bootstrap method as is defined as exchange.Base method

* add tests

* glorious: make it a function and make it IBOTEXCHANGE

---------

Co-authored-by: shazbert <ryan.oharareid@thrasher.io>

cmd/config_builder/builder.go

@@ -36,7 +36,7 @@ func main() {
 	cfgs := make([]config.Exchange, 0, len(exchanges))
 	for x := range exchanges {
 		var cfg *config.Exchange
-		cfg, err = exchanges[x].GetDefaultConfig(context.Background())
+		cfg, err = exchange.GetDefaultConfig(context.Background(), exchanges[x])
 		if err != nil {
 			log.Printf("Failed to get exchanges default config. Err: %s", err)
 			continue

cmd/exchange_template/wrapper_file.tmpl

@@ -26,25 +26,6 @@ import (
 	"github.com/thrasher-corp/gocryptotrader/portfolio/withdraw"
 )
 
-// GetDefaultConfig returns a default exchange config
-func ({{.Variable}} *{{.CapitalName}}) GetDefaultConfig(ctx context.Context) (*config.Exchange, error) {
-	{{.Variable}}.SetDefaults()
-	exchCfg := new(config.Exchange)
-	exchCfg.Name = {{.Variable}}.Name
-	exchCfg.HTTPTimeout = exchange.DefaultHTTPTimeout
-	exchCfg.BaseCurrencies = {{.Variable}}.BaseCurrencies
-
-	{{.Variable}}.SetupDefaults(exchCfg)
-
-	if {{.Variable}}.Features.Supports.RESTCapabilities.AutoPairUpdates {
-		err := {{.Variable}}.UpdateTradablePairs(ctx, true)
-		if err != nil {
-			return nil, err
-		}
-	}
-	return exchCfg, nil
-}
-
 // SetDefaults sets the basic defaults for {{.CapitalName}}
 func ({{.Variable}} *{{.CapitalName}}) SetDefaults() {
 	{{.Variable}}.Name = "{{.CapitalName}}"