reorganized posix sitl launch scripts, reorganized mavros python test scripts (integration tests) and updated them for posix sitl, removed old and not working integration tests

integrationtests/run_container.bash

@@ -0,0 +1,25 @@
+#!/bin/bash
+#
+# Run container and start test execution
+#
+# License: according to LICENSE.md in the root directory of the PX4 Firmware repository
+set -e
+
+if [ -z "$WORKSPACE" ]; then
+    echo "\$WORKSPACE not set"
+    exit 1
+fi
+
+# Pulling latest image
+# TODO: remove old one to save space, until then, update manually
+#echo "===> pull latest Docker image"
+#docker pull px4io/sitl-testing
+#echo "<==="
+
+#
+# Running SITL testing container
+# Assuming that necessary source projects, including this one, are cloned in the build server workspace of this job.
+#
+echo "===> run container"
+docker run --rm -v "$WORKSPACE:/job:rw" px4io/px4-dev-ros bash "/job/Firmware/integrationtests/run_tests.bash" /job/Firmware
+echo "<==="