TradeOgreAdapters.adaptCurrencyPair() build a wrong CurrencyPair

[francitoshi]

class "TradeOgreAdapters" has the method "adaptCurrencyPair" with

return currencyPair.counter.toString() + "-" + currencyPair.base.toString();

but shoud be

return currencyPair.base.toString() + "-" + currencyPair.counter.toString();

This bug prevents applications from placing an order, with this change the problem it's solved.

[gewure]

please create a PR @francitoshi !

[bigscoop]

it is this one https://github.com/knowm/XChange/pull/4871