Support for RejectInvalidMessage configuration

Created by: darwayne

First and foremost, great job on this awesome library. I love it ❤️

What are your thoughts on supporting the RejectInvalidMessage configuration property? This comes in handy when interacting with FIX servers that deviate from the spec.

From QuickFIX,

If RejectInvalidMessage is set to N, only a warning will be logged on reception of message that fails data dictionary validation.