Created by: aperloff
Add some track collections which were missing for the EMJ analysis. To do this required adding some ultra-legacy (UL) eras as one of the collections is only available in UL.
Also update the part of the unit test code which handles arbitrary options/commands passed to TreeMaker. Before, it was only allowing one (option=value) pair. Now it can handle many space separated pairs. Outside of that pattern, it returns to the previous way of passing these options.