Resiliency patterns for golang. Based in part on Hystrix, Semian, and others. Currently implemented patterns include circuit-breaker (in the breaker directory), semaphore (in the semaphore directory), deadline/timeout (in the deadline directory), batching (in the batcher directory), retriable (in the retrier directory). I will occasionally bump the minimum required Golang version without bumping the major version of this package, which violates the official Golang packaging convention around...