fixed dependencies

vendor/gonum.org/v1/gonum/num/quat/doc.go

@@ -0,0 +1,10 @@
+// Copyright ©2018 The Gonum Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package quat provides the quaternion numeric type and functions.
+//
+// For a good treatment of uses and behaviors of quaternions, see
+// the interactive videos by Ben Eater and Grant Sanderson here
+// https://eater.net/quaternions.
+package quat // imports "gonum.org/v1/gonum/num/quat"