assemble.sh now returns exit code from Installomator.sh

utils/assemble.sh

@@ -120,6 +120,8 @@ chmod +x $destination_file
 # run script with remaining arguments
 if [[ $runScript -eq 1 ]]; then
     $destination_file "$@"
+    exit_code=$?
+    echo "exit_code is $exit_code"
 fi
 
 # copy the script to root of repo when flag is set
@@ -186,3 +188,5 @@ if [[ $notarizePkg -eq 1 ]]; then
     echo "# Stapling $productpath"
     xcrun stapler staple "$productpath"
 fi
+
+exit $exit_code