Fix/Rework socket transport to support transmission of large data
Fix/Rework socket transport to support transmission of large data

Fixes the chunk meachnism (was present but broken before)
Rework header format for faster parsing

stefanomarty/openxpki,stefanomarty/openxpki,aleibl/openxpki,oliwel/openxpki,stefanomarty/openxpki,stefanomarty/openxpki,aleibl/openxpki,openxpki/openxpki,stefanomarty/openxpki,openxpki/openxpki,aleibl/openxpki,stefanomarty/openxpki,oliwel/openxpki,openxpki/openxpki,oliwel/openxpki,oliwel/openxpki,oliwel/openxpki,aleibl/openxpki,aleibl/openxpki,openxpki/openxpki,oliwel/openxpki,aleibl/openxpki