Remove sysout

Remove duplicate org.etsi.ttcn.common.ByteHelper.java file and replace it by org.etsi.common.ByteHelper.java after merge

Add CommsigniaLayer.receive() method

Add AcSecPrimitive/AcSecResponse support for CAM (DENM & GN to be done)

.  Implement additional TPs
.  Review of the PICS, TSS&TPs & PIXITs documents
.  Start validation using simulation
.      Minor bug fixed in TA
TODO: Logs should be commented later