Allowing to configure the component name for the http4s client metrics

[albertoadami]

At the moment all the client metrics are generated with component name http4s.client, in my use case I need to have more specific names for them.

Considering the following example:

1. I have service A that is performing calls to services B C D
2. I have service B that is performing calls to service F
3. I have service C that is performing calls to service F

What I would like to achieve is to have inside the metrics the information regarding which service (component) is the metric about.