* Add lcov script

        For openaadl/ocarina#164

examples/aadlv2/code_coverage/lcov.sh

+#!/bin/sh
+for i in "$@"
+do
+case $i in
+    --output-dir-name=*)
+    OUTPUT_DIR="${i#*=}" #ONLY NAME OF DIR
+    shift # past argument=value
+    ;;
+    *)
+            # unknown option
+    ;;
+esac
+done
+
+if [ -z "$OUTPUT_DIR" ]; then
+  OUTPUT_DIR=./gcov_output
+else
+  OUTPUT_DIR=./$OUTPUT_DIR
+fi
+
+if (! test -d $OUTPUT_DIR )
+then
+  echo "Missing path: $OUTPUT_DIR. Creating directory..."
+  mkdir $OUTPUT_DIR
+fi
+
+lcov -c -i -d . -o .coverage.base
+lcov -c -d . -o .coverage.run
+lcov -d . -a .coverage.base -a .coverage.run -o .coverage.total
+genhtml --no-branch-coverage -o $OUTPUT_DIR .coverage.total
+rm -f .coverage.base .coverage.run .coverage.total