Bug#842818: ITP: golang-github-btcsuite-fastsha256 -- Go fast SHA256 implementation

[Alessio Treglia <alessio@debian.org>]

Package: wnpp
Severity: wishlist
Owner: Alessio Treglia <alessio@debian.org>

* Package name    : golang-github-btcsuite-fastsha256
  Version         : 0.0~git20160815.0.637e656
  Upstream Author : Btcsuite project
* URL             : https://btcsuite.github.io/
* License         : BSD-3-clause, ISC
  Programming Lang: Golang
  Description     : Go fast SHA256 implementation

 This package provides an alternative fast-SHA256
 implementation to the one provided by the Go crypto/sha256
 package and supports midstate calculations.
 .
 This package is used by several Tendermint's components.