Prep work for query/request parameter refactor

[Blacksmoke16]

Context

Prepares for #418 by addressing my thoughts in the latest comment. Sets things up well for the next pass to actually implement some of the resolver/annotation logic.

Changelog

• Breaking: Make ATHR::Interfae.configuration macro no longer scoped to resolver namespace
  • If defining the annotation in a different namespace, prefix it with :: and use the FQN
• Breaking: Rename ATHR::RequestBody::Extract to ATHA::MapRequestBody
• Breaking: Rename ATHR::Time::Format to ATHA::MapTime

[Blacksmoke16]

This is blocked until Crystal 1.13 as it requires https://github.com/crystal-lang/crystal/pull/14490 for the annotations to be defined/resolve correctly.