main tables adjusted to show contents for maec package's subjects (each row in the table is a subject).

this is just the basic guts (the correct content is not displaying yet)
updated the columns in the maec package's malware subjects table to show the list of (one or more) labels in the first column.  the second column still shows the id.
now maec package's subject have correctly expanding MIOA (malware instance object attributes).

plugging away at getting the rest of the malware_subject data to display correctly...