EWAY Rapid gateway implementation using their direct connection API (http://api-portal.anypoint.mulesoft.com/eway/api/eway-rapid-31-api/docs/reference/direct-connection?ref=apihub) 

- a EWAY Rapid gateway implementation using their direct connection API (http://api-portal.anypoint.mulesoft.com/eway/api/eway-rapid-31-api/docs/reference/direct-connection?ref=apihub)
- this implementation supports purchase and refund transactions only
- tests have been added for this transactions