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_386.go

@@ -0,0 +1,33 @@
+// 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 386 && gc && !purego
+// +build 386,gc,!purego
+
+package blake2s
+
+import "golang.org/x/sys/cpu"
+
+var (
+	useSSE4  = false
+	useSSSE3 = cpu.X86.HasSSSE3
+	useSSE2  = cpu.X86.HasSSE2
+)
+
+//go:noescape
+func hashBlocksSSE2(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte)
+
+//go:noescape
+func hashBlocksSSSE3(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte)
+
+func hashBlocks(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte) {
+	switch {
+	case useSSSE3:
+		hashBlocksSSSE3(h, c, flag, blocks)
+	case useSSE2:
+		hashBlocksSSE2(h, c, flag, blocks)
+	default:
+		hashBlocksGeneric(h, c, flag, blocks)
+	}
+}