Grand test fixup (#138)

* start fixing up tests

* fix up tests + automate with drone

* fiddle with linting

* messing about with drone.yml

* some more fiddling

* hmmm

* add cache

* add vendor directory

* verbose

* ci updates

* update some little things

* update sig

vendor/golang.org/x/crypto/blake2s/blake2s_ref.go

@@ -0,0 +1,18 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build (!amd64 && !386) || !gc || purego
+// +build !amd64,!386 !gc purego
+
+package blake2s
+
+var (
+	useSSE4  = false
+	useSSSE3 = false
+	useSSE2  = false
+)
+
+func hashBlocks(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte) {
+	hashBlocksGeneric(h, c, flag, blocks)
+}