Proposal: Extract formatters and make them configurable

[pxlpnk]

Before more formatters might be added I would propose that we extract the existing ones into single gems or a pack of formatters.
This helps in keeping the dependencies for lograge small, and the formatters could have what they need as dependencies.
Also people would be able to create their own specialised formatters.

[benlovell]

I'm not certain we're feeling the pain of those extra dependencies yet. The formatters themselves are very small and are not the subject of change generally. It's something to be mindful of though. I think when you trade off the extra complexity for configuration and maintaining backwards compatibility it outweighs the benefits at this stage.

Like anything though, I'm happy to hear others opinions. I'm not 100% committed either way.

[pxlpnk]

True the pain is not yet there(and might never be there).
Maintaing backwards compatibility is definitely harder then.