[Feature Request] Support custom tags for Micrometer

[fdw]

If I add .addCapability(new MicrometerCapability(meterRegistry)) to my Feign client, there seems to be no way to add custom tags to the Micrometer metrics. It would be nice to do this, for example by extending MicrometerCapability to MicrometerCapability(meterRegistry, mapOfTags()).

[tzifudzi]

+1

[r1jsheth]

I would also love to have this feature.
@kdavisk6 do you think this can be a good first issue?
I can work on it.

[BartekBanachowicz]

Hey, @kdavisk6 and @velo, I'd love to work on this. Could you assign this issue to me?

[kdavisk6]

You don't need our permission, just go ahead and submit a PR when you are ready 👍🏻