Put Serv.Api.Analysis in a better location

[tel]

Right now it's just sort of attached to serv vestigially and because it seemed like a better place to put it than in serv-wai. Honestly, serv-wai is essentially the only user in the near term although this sort of thing might be taken to a whole new level with something like serv-swagger.

If it can be factored out of serv then we can lose text and containers as deps, too, so that's sort of nice. Not that they aren't being pulled in transitively by http-kinder, though.

[tel]

If nothing else it shouldn't be in the public API!