Limit shared GetBalance result to Exchange balances to prevent duplic…

…ate asset balances

Bitfinex.Net/Clients/SpotApi/BitfinexRestClientSpotApiShared.cs

@@ -283,7 +283,7 @@ async Task<ExchangeWebResult<IEnumerable<SharedBalance>>> IBalanceRestClient.Get
             if (!result)
                 return result.AsExchangeResult<IEnumerable<SharedBalance>>(Exchange, null, default);
 
-            return result.AsExchangeResult<IEnumerable<SharedBalance>>(Exchange, SupportedTradingModes, result.Data.Select(x => new SharedBalance(x.Asset, x.Available ?? 0, x.Total)).ToArray());
+            return result.AsExchangeResult<IEnumerable<SharedBalance>>(Exchange, SupportedTradingModes, result.Data.Where(x => x.Type == WalletType.Exchange).Select(x => new SharedBalance(x.Asset, x.Available ?? 0, x.Total)).ToArray());
         }
 
         #endregion