feat(battery): New den._.hostname and ..

[musjj]

Convert two well-known patterns from the examples into built-in batteries:

• Bidirectional provider
• Automatically setting networking.hostName

I feel that these two use-cases are common enough that they are worth being lifted up into the built-in set of batteries.

What do you think?

Also, I would like to hear if you have any better ideas for the names:

• den._.set-hostname: Maybe too specific? In the future, will there be any other use-cases for auto-configuring hosts that could be included in this battery?
• den._.bidirectional-provider: Feels descriptive, but maybe too long?

[vic]

Hey, @musjj. I like the idea of having them as batteries. I've added some comments for you.

[vic]

Also, if we are having new batteries, be sure to also have some tests for them in templates/ci.

[vic]

Looks good, just rename to mutual-provider, update the link and we'll merge.

[musjj]

Done!

[vic]

thanks!