Adjust Finance Application currency settings

Purpose: User requires the ability to identify the default currency to be used for their financial structure in order to track finance data. User should be able to define available transaction currencies as well based on a list of international currencies so that they can create orders, payments and credits for currencies other than the systems currency.

High Level Requirements:

• Add a "currency" tab to the finance module settings
• User should be able to confirm the system default currency and select a different one if necessary.
• Display a list of possible transaction currencies
• User can add or remove currencies from this list of possible transaction currencies

Additional Detail: See screenshot