Fix page number transitions that were counting foldout pages (should not count those) for AEP

Implement [UNIT] page list token (AEP)
Added property to track page numbers without foldouts for page num transitions (AEP)

PROMS/Volian.Print.Library/VlnSvgPageHelper.cs

@@ -1792,6 +1792,10 @@ namespace Volian.Print.Library
 						revUnit += "/Unit 1";
 					plstr = plstr.Replace(token, revUnit);
 					break;
+				case "[UNIT]":
+					string un = MySection.MyDocVersion.DocVersionConfig.Print_UnitNumberForPageList;
+					plstr = plstr.Replace(token, un);
+					break;
 				default:
 					if (token.Contains(@"RO-"))
 					{