Update ros2 docker

src/test/bash/integrationTestRos2.sh

 #!/bin/bash
 set -e
+baseDir=$(readlink -f `dirname $0`/../../..)
 
-#./target/generated-sources-ros2/distributed/compile.sh
-#TODO: struct compilation
-#./target/generated-sources-ros2/distributedStruct/compile.sh
-./target/generated-sources-ros2/system/compile.sh
-#./target/generated-sources-ros2/addComp/compile.sh
+for f in `find $baseDir/target/generated-sources-ros2/ -name compile.sh`
+do
+	bash -H $f
+done
\ No newline at end of file

src/test/docker/ema-ros-crystal/Dockerfile

@@ -7,4 +7,5 @@ ADD https://rwth-aachen.sciebo.de/s/igDWzLpdO5zYHBj/download?path=%2Fubuntu%2F18
 RUN unzip /root/armadillo.zip -d /root/
 ENV Armadillo_HOME=/root/armadillo-8.500.1-linux
 ENV ROS2_HOME=/opt/ros/crystal
+RUN pip3 install -U colcon-common-extensions
 CMD ["bash"]

src/test/docker/ema-ros-crystal/build.sh

+#!/usr/bin/env bash
 curDir=$(readlink -f `dirname $0`)
 docker build -t registry.git.rwth-aachen.de/monticore/embeddedmontiarc/generators/emam2middleware/ema-ros-crystal $curDir

src/test/docker/ema-ros-crystal/push.sh

+#!/usr/bin/env bash
 docker push registry.git.rwth-aachen.de/monticore/embeddedmontiarc/generators/emam2middleware/ema-ros-crystal