[administrivia] Add .gitignore files, based on .cvsignores.
diff --git a/isisd/topology/.gitignore b/isisd/topology/.gitignore
new file mode 100644
index 0000000..b0ae823
--- /dev/null
+++ b/isisd/topology/.gitignore
@@ -0,0 +1,9 @@
+Makefile
+Makefile.in
+*.o
+tags
+TAGS
+.deps
+.nfs*
+.arch-inventory
+.arch-ids