Added __main__ => text to explain how to use this package

git-svn-id: https://redmine.imt-atlantique.fr/svn/xaal/code/Python/branches/0.7@2654 b32b6428-25c9-4566-ad07-03861ab6144f

devices/tests/dummy/xaal/dummy/__init__.py

+

devices/tests/dummy/xaal/dummy/__main__.py

+txt = """================= xAAL dummy devices =================
+
+This package contains some fake lamps, power_relay, and bot:
+    - lamp:         a simple lamp implementation
+    - lamp_minimal: a simple lamp using schema devices
+    - power_relay:  a power relay 
+    - temperature:  a fake temperature sensor
+    - autobot:      a bot than send turn_on/off and  set_brightness
+
+To run a module simply call: python -m xaal.dummy.module 
+Example: python -m xaal.dummy.lamp 8e1495cc-b98b-11eb-8432-d6bd5fe18736
+
+All modules accept their address (uuid) as argument. Autobot uuid is the
+lamp's address to switch.
+"""
+
+print(txt)
\ No newline at end of file