Allow players to enter their own exchange rate for gold transfer orders

#1
Hi!
You knew this would be requested as soon as there was an automated gold trading system!

The current exchange rate system doesn't go far enough to incentivize trades to realms with high economies. It would be nice if the trading system allowed players to select their desired exchange rate when placing their orders (like a real currency market!). This would allow players the flexibility of lowering their rates to get a quicker trade, or raising their rates for increased gains.

:hugs:
Tamlan Tenderheart ♥ Highlander Cleric
Discordia ♥ Briton Friar DF Lifeguard
GM <Knights of the Hospital>