Adding support for topology recipes and cleaning up topologies.

Cleaned-up a few STC scenarios.

Change-Id: I4ffa61953d8cf289406fa572ab7603d996e26a85
diff --git a/tools/test/topos/geant.recipe b/tools/test/topos/geant.recipe
new file mode 100644
index 0000000..5a2c5bf
--- /dev/null
+++ b/tools/test/topos/geant.recipe
@@ -0,0 +1,13 @@
+# GEANT & Nordnet topology recipe
+export OTD=31
+export OTL=108
+export OTH=31
+
+# Variables for the pingall scenario.
+export OPALL=930
+
+# Variables for link-up-down-up scenario.
+export OPS=h3
+export OPD=h31
+export OPL1="s31 s14"
+export OPL2="s31 s30"
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