add names config option for name transforms

[jharris4]

Hi there! I've been finding this plugin super useful, and I was using templates to do some clever stuff like naming entities according to the room they're in etc.

It was working well, but I noticed that the cards using a template render async and take a second to load compared to other cards not using templates that render seemingly instantly.

This got me curious to investigate whether there was some way to transform the names of entities with this plugin without using templates.

It turns out it wasn't supported but wasn't that hard to add! I created forked version of this plugin for testing called auto-named-entities with a new names config option and it's working great to transform my entity names without needing a template.

I figured I'd submit this PR in case others might find this functionality useful.

[soif]

Awesome (and needed IMHO) addition @jharris4 ! ❤️

• I really like the example that remove the Area from names, mimicking the default HA Overview dashboard !
• BTW adding a 'regreplace' (or allowing regex both in match & replacement) would make it definitively gorgeous !

@thomasloven It really desserve to be merged (once successfully tested) ! 🙏