Debug/Execution Info needed for scripting

[TedJackson]

In reference to this post: https://celestia.space/forum/viewtopic.php?f=2&t=21788

Operating systems provide crash reports, debuggers report execution errors, and compilers report syntax errors for a reason. It would certainly be a helpful feature for Celestia to somehow indicate the presence of that typo (or anything ELSE that it can't execute in a running script).

I think the '~' Debug Console would be a natural place to include that information.