added ReadMe for Autopilot-Wrapper

Autopilot/README.md

+<!-- (c) https://github.com/MontiCore/monticore -->
+## How to use the wrapper:
+
+1.  Build the EMAM Component. See [this page](https://git.rwth-aachen.de/monticore/EmbeddedMontiArc/applications/carlacomponents/blob/master/README.md) for more information.
+
+2.  Install (and start) the carla-ros-bridge, as described [here](https://github.com/carla-simulator/ros-bridge).
+
+3.  Install (and start) the carla-waypoint-publisher, as described [here](https://github.com/carla-simulator/ros-bridge/tree/master/carla_waypoint_publisher).
+
+4.  Start the python script by running:
+
+        python converter.py 
+
+    on your shell while in the containing directory.
+
+5.  Start the executable generated in step one by running:
+
+        cd ./target/install/bin
+        ./Coordinator_wrapper_wrapper
+        
+    while in the main directory of this project.
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