tests: Add test specification

Add minor changes in all testscripts, to add name and description
Add generated test specification
Add generated topology image

test/case/ietf_interfaces/routing_basic/Readme.adoc

@@ -0,0 +1,30 @@
+=== Routing basic
+==== Description
+Test that ipv4 forwarding setting in configuration is respected
+
+==== Topology
+ifdef::topdoc[]
+image::/home/lazzer/Documents/addiva/infix/test/case/ietf_interfaces/routing_basic/topology.png[Routing basic topology]
+
+endif::topdoc[]
+ifndef::topdoc[]
+ifdef::testgroup[]
+image::lazzer/Documents/addiva/infix/test/case/ietf_interfaces/routing_basic/topology.png[Routing basic topology]
+
+endif::testgroup[]
+ifndef::testgroup[]
+image::topology.png[Routing basic topology]
+
+endif::testgroup[]
+endif::topdoc[]
+==== Test sequence
+. Initialize
+. Setup host
+. Enable forwarding
+. Traffic is forwarded
+. Disable forwarding
+. Traffic is not forwarded
+
+
+<<<
+

test/case/ietf_interfaces/routing_basic/test.py

@@ -16,6 +16,11 @@
 # |                  [ HOST ]                    |
 # '----------------------------------------------'
 
+"""
+Routing basic
+
+Test that ipv4 forwarding setting in configuration is respected
+"""
 import infamy
 
 def config_target(target, tport0, tport1, enable_fwd):