Finnaly on track to get archive and retrieve to work.
Fixed storage of PELEM_EXEC_STRUCT for archive.
Completely implemented new element storage model, ready for archiveing.
Fixed storage for Pfasd3
Fixed storage for most elements, now for the two big ones.
Adapting how geometry is written to memory in order to support archiving.
Adapted Test 10 for archive testing purposes.
par_all_structs() writes something to file, next to check what?
Work on main archive functions.
Open/close archive files
