Fix conversion of OPI actions to execute scripts/commands into BOB #3341
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I found a few issues during the conversion of OPI to BOB when the widgets contained an action to EXECUTE_CMD, EXECUTE_PYTHONSCRIPT or EXECUTE_JAVASCRIPT. These are detailed in #3340.
This PR fixes the 3 issues detailed in the issue ticket above and also adds 2 Java unit tests to test this functionality to ensure we don't miss an regression to converter in the future.