Adding test unit to build a encode/decode a secured beacon
helpers for certificate fields retrieving
put mw_geoNwSecPdu to LibItsGeoNetworking_Templates
Updated TC_ITS_S_CAM_01
TTCN-3 typing review
Uses inbound TTCN-3 function instead of 'null' comparison
Change 'set of' into 'record of'
GnSecuredPacket should be refine to support GN Security