[execo_g5k] Add Kaconsole to documentation

doc/execo_g5k.rst

@@ -175,6 +175,16 @@ G5kAutoPortForwarder
 .. autoclass:: execo_g5k.utils.G5kAutoPortForwarder
    :members:
 
+Kaconsole
+=========
+
+Kaconsole
+---------
+.. inheritance-diagram:: execo_g5k.kadeploy.KaconsoleProcess
+.. autoclass:: execo_g5k.kadeploy.KaconsoleProcess
+   :members:
+   :show-inheritance:
+
 Grid5000 API utilities
 ======================