Implement API changes needed to use Wyre widget in application

Wyre implemented a change, whereby wallet would need to lock in order via API before allowing widget operation.

The changes are detailed in:

https://docs.sendwyre.com/docs/wallet-order-reservations

Without this change, our users are not able to complete the transaction in Wyre.


The benefit of Wyre is that, it allows users to buy the little amount of ETH that is needed to pay for gas. Most other providers have a threshold of around $75 USD to buy crypto.