requestViaForEtherfunction that accepts a
amountparameter, a user's Verified account debits ether in the account equivalent to
amount, and requests for issue of Via cash tokens denominated in the
currencywhich are credited to the user's Verified account.
requestIssuefunction which applications should call by passing the currency and amount to debit, and the currency to issue Via cash in. Doing this converts the amount in the currency to debit into an equivalent amount in the currency to issue in and then credits that amount of Via into the user's Verified account wallet.