Provide a base "operation" class

[timriley]

There are a bunch of common things we could pull out of all of our operations:

• include Dry::Monads::Either::Mixin
• include Dry::Matcher.for(:call, with: Dry::Matcher::EitherMatcher)
• Provide a way to consistently enable the call(*args).or { |f| raise Failure, f } pattern inside #call_from_queue methods