public String getDestinationProgramID() {
		Options properties = getOptions(PROGRAM_ID_PROPERTYLIST_NAME);
		return properties.getString(DESTINATION_PROGRAM_ID_PROPERTY_KEY, "");
	}
Open associated source and destination program files and complete session initialization.
@param projectData active project data
@throws IOException if source or destination program not found within specified project
or an error occured while opening them (e.g., upgrade required).
Ghidra/Features/VersionTracking/src/main/java/ghidra/feature/vt/api/db/VTSessionDB.java