directory structure change to work with glide

glide has its own requirements. My previous workaround caused me some
code checkin errors. Need to fix this.

weed/images/orientation_test.go

@@ -0,0 +1,17 @@
+package images
+
+import (
+	"io/ioutil"
+	"testing"
+)
+
+func TestXYZ(t *testing.T) {
+	fname := "sample1.jpg"
+
+	dat, _ := ioutil.ReadFile(fname)
+
+	fixed_data := FixJpgOrientation(dat)
+
+	ioutil.WriteFile("fixed1.jpg", fixed_data, 0644)
+
+}