Exception handling customization

[ShadowOfHeaven-Me]

Is your feature request related to a problem? Please describe.
PE always throws errors on invalid packets sent by the client, making packet analysers really annoying to create.

Describe the solution you'd like
Include the possibility to configure exception handling (in exceptionCaught of the decoder and encoder handlers) by including a class that'd accept Throwable, Thread & an ExceptionOrigin enum, that'd be either ENCODER or DECODER. Making it an enum enables scalability.
The Exception Handler would be configurable during PE instantiation.