Add lazy strategy

robot/code/robot/modes/test/do_nothing.py

+from robot import Robot
+from robot.movement import positionLib as pl
+import time as t
+
+class DemoRobot(Robot):
+    def execute_strategy(self):
+        t.sleep(100)#devrait permettre de tester l'affichage
+
+
+def run():
+    strategy = DemoRobot()
+    strategy.run()