Update ISHelpGen .gitignore.

ISHelp/ISHelpGen/.gitignore

@@ -1,3 +1,4 @@
-*.dcu
-*.dof
-*.cfg
+*.res
+*.dproj.local
+*.identcache
+*.exe

ISHelp/ISHelpGen/Dcu/.gitignore

@@ -0,0 +1 @@
+*.dcu