Made it so the Open From Archive can select multiple archives and put them all in the same Workspace Dir (without asking you each time)
Fixed issue where if a Workspace Dir had no stage then WorldspaceProject::GetAllArchives() would return a list with a null entry.
Fixed issue where some some maps (A_R00\Room0.arc) had mis-placed files that would crash loading (ie: "model.dzb" in dzr file).
Updated Environment Lighting Editor to update values when an entity file was selected.