Deprecating features toward slimmer LTS version

[hobbes7878]

We're onboarding folks to Sveltekit with a bit of pace now.

I think I want to take the opportunity to deprecate some of the more complicated features in this rig for non-standard projects that are better handled by the new kit.

Thinking:

• Translation
• Pre-rendering
• more??

Would also love to move more out of the bin in favour of functions in graphics-bin and ultimately use graphics-kit-publisher for all publishing logic.

[hobbes7878]

OK, making a list of scripts in the bin/ to deprecate:

• bin/addLocale Creating translations
• bin/checkAi2html
  • Use package.json engine instead
• bin/checkCreds
  • Use graphics-bin instead
• bin/checkEnv
• bin/extractText PO file getText
• bin/makeSrcset
• bin/resetServerCreds
• bin/trello Trello hooks