Add app source, add vendoring and module support

vendor/github.com/dgryski/go-farm/README.md

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+# go-farm
+
+*Google's FarmHash hash functions implemented in Go*
+
+[![Master Branch](https://img.shields.io/badge/-master:-gray.svg)](https://github.com/dgryski/go-farm/tree/master)
+[![Master Build Status](https://secure.travis-ci.org/dgryski/go-farm.png?branch=master)](https://travis-ci.org/dgryski/go-farm?branch=master)
+[![Master Coverage Status](https://coveralls.io/repos/dgryski/go-farm/badge.svg?branch=master&service=github)](https://coveralls.io/github/dgryski/go-farm?branch=master)
+[![Go Report Card](https://goreportcard.com/badge/github.com/dgryski/go-farm)](https://goreportcard.com/report/github.com/dgryski/go-farm)
+[![GoDoc](https://godoc.org/github.com/dgryski/go-farm?status.svg)](http://godoc.org/github.com/dgryski/go-farm)
+
+## Description
+
+FarmHash, a family of hash functions.
+
+This is a (mechanical) translation of the non-SSE4/non-AESNI hash functions from Google's FarmHash (https://github.com/google/farmhash).
+
+
+FarmHash provides hash functions for strings and other data.
+The functions mix the input bits thoroughly but are not suitable for cryptography.
+
+All members of the FarmHash family were designed with heavy reliance on previous work by Jyrki Alakuijala, Austin Appleby, Bob Jenkins, and others.
+
+For more information please consult https://github.com/google/farmhash
+
+
+## Getting started
+
+This application is written in Go language, please refer to the guides in https://golang.org for getting started.
+
+This project include a Makefile that allows you to test and build the project with simple commands.
+To see all available options:
+```bash
+make help
+```
+
+## Running all tests
+
+Before committing the code, please check if it passes all tests using
+```bash
+make qa
+```