added dqr

lapack.go

@@ -0,0 +1,10 @@
+package lapack
+
+import (
+	"github.com/gonum/blas"
+)
+
+type Lapack interface {
+	Dgeqrf(A blas.General, tau []float64)
+	Dormqr(s blas.Side, t blas.Transpose, A blas.General, tau []float64, B blas.General)
+}