More elaborate way of measuring the success of a response

[HenrikOssipoff]

Currently, the success property only looks in the error code/message. These seem to only be with regards to the actual call, not what was performed.

For example, if you capture a transaction, and there wasn't enough funds, the error code/message will actually state everything went fine, while there is a message in the body stating that things didn't go too well.

There will need to be a better way of measuring the success of a request/call.

An example could be to change the error property to be a list of errors instead, and then incorporate the others into this property.