added a simply test

git-svn-id: https://redmine.imt-atlantique.fr/svn/xaal/code/Python/trunk@1989 b32b6428-25c9-4566-ad07-03861ab6144f

devices/protocols/knx/tests/knx_send.py

+from xaal.knx import knxrouter
+import sys
+
+knx = knxrouter.KNXConnector('2.2.2')
+addr = sys.argv[1]       # ie 9/0/2
+data = float(sys.argv[2]) # ie 200
+dpt  = sys.argv[3]      # ie '9'
+knx.write(addr,data,dpt)