Default to load test pcap file from home directory.
pcap, pdu_dispatch, test modules updated
include: jdksavdecc_aem_command.h, add type and index fields to the end of LOCK_ENTITY

This commit updates LOCK_ENTITY defines to match 1722.1-2013, section 7.4.2
include: jdksavdecc_world.h, don't include jdksavdecc_print.h as it uses undefined structs
#include print for printing helper structs
Fix include guard
Minor doxygen comments added
Added doxygen docs, Fixed _read to be validated
Added utility functions to get/set eui64 and eui48 from uint64_t
AEM Descriptor storage magic number is “AEM1”
Removed old header magic
descriptor_storage file format now matches reality
Descriptor storage now matches reality, WIP functions