introducing chatGPT support

[haesleinhuepf]

Hi @ctrueden and, @acardona ,

this PR adds OpenAI's chatGPT integration into the Script Editor. Just write a prompt, select it and click on this menu:

E.g. producing ImageJ Macro:

It also works with Groovy if this language is selected:

If this gets merged, we need to:

• [ ] Update documentation to tell people how to use it and how to configure an OpenAI API Key in the system environment
• [ ] Include these libraries and potential dependencies to upload to the ImageJ update site: https://github.com/scijava/script-editor/blob/51b7d2aabee5b05c93f44cad10462a251fe02bc6/pom.xml#L212-L221

Let me know what you think!

Best, Robert

[ctrueden]

I added the Edit>Options>OpenAI... settings dialog. Gonna merge this now, so that we can get it into the next Fiji release. Better exception handling can be added later if/when users have issues with flaky responses from ChatGPT.

[ctrueden]

Thanks again, @haesleinhuepf :smile_cat: