ONOS-6259: Topo2 - Implement server-side highlighting model (WIP)
- added locType parameter to region-add command
- created RegionABC sample topology
- fixed possible NPE in Topo2Jsonifier.jsonClosedRegion()
- added "plain" sprite layout
- check for undefined sprite layout and log a warning
- updated logger.sh script
- fixed Topo2Model to have a reference to colleciton before initialization

Change-Id: Ie6af28516338f5d64576bf465373cb5df3dff52c
diff --git a/tools/test/topos/regionabc-onos.py b/tools/test/topos/regionabc-onos.py
new file mode 100644
index 0000000..f2c8218
--- /dev/null
+++ b/tools/test/topos/regionabc-onos.py
@@ -0,0 +1,6 @@
+#!/usr/bin/python
+
+from onosnet import run
+from regionabc import RegionABC
+
+run( RegionABC() )