Refactor zmq poll loop, add method to preprocess message for RemoteNode.
Refactor zmq poll loop, add method to preprocess message for RemoteNode.

Artemkaaas/indy-sdk,peacekeeper/indy-sdk,MRJCrunch/indy-sdk,korsimoro/indy-sdk,anastasia-tarasova/indy-sdk,anastasia-tarasova/indy-sdk,anastasia-tarasova/indy-sdk,peacekeeper/indy-sdk,Artemkaaas/indy-sdk,srottem/indy-sdk,korsimoro/indy-sdk,peacekeeper/indy-sdk,srottem/indy-sdk,srottem/indy-sdk,evernym/sovrin-client-rust,korsimoro/indy-sdk,srottem/indy-sdk,srottem/indy-sdk,peacekeeper/indy-sdk,korsimoro/indy-sdk,Artemkaaas/indy-sdk,Artemkaaas/indy-sdk,evernym/sovrin-client-rust,srottem/indy-sdk,korsimoro/indy-sdk,korsimoro/indy-sdk,anastasia-tarasova/indy-sdk,Artemkaaas/indy-sdk,peacekeeper/indy-sdk,Artemkaaas/indy-sdk,anastasia-tarasova/indy-sdk,peacekeeper/indy-sdk,peacekeeper/indy-sdk,korsimoro/indy-sdk,evernym/sovrin-client-rust,srottem/indy-sdk,Artemkaaas/indy-sdk,srottem/indy-sdk,Artemkaaas/indy-sdk,MRJCrunch/indy-sdk,evernym/sovrin-client-rust,MRJCrunch/indy-sdk,MRJCrunch/indy-sdk,Artemkaaas/indy-sdk,srottem/indy-sdk,Artemkaaas/indy-sdk,peacekeeper/indy-sdk,anastasia-tarasova/indy-sdk,peacekeeper/indy-sdk,peacekeeper/indy-sdk,Artemkaaas/indy-sdk,peacekeeper/indy-sdk,evernym/sovrin-client-rust,anastasia-tarasova/indy-sdk,peacekeeper/indy-sdk,MRJCrunch/indy-sdk,korsimoro/indy-sdk,srottem/indy-sdk,evernym/sovrin-client-rust,anastasia-tarasova/indy-sdk,MRJCrunch/indy-sdk,anastasia-tarasova/indy-sdk,anastasia-tarasova/indy-sdk,Artemkaaas/indy-sdk,MRJCrunch/indy-sdk,korsimoro/indy-sdk,anastasia-tarasova/indy-sdk,Artemkaaas/indy-sdk,srottem/indy-sdk,srottem/indy-sdk,anastasia-tarasova/indy-sdk,srottem/indy-sdk,korsimoro/indy-sdk,anastasia-tarasova/indy-sdk,peacekeeper/indy-sdk