Add a GM and images to test SkEncodedOrigin

Bug: skia:7138
Change-Id: I4800bcffc6a397cb688e63a505dd36145e423fa2
Reviewed-on: https://skia-review.googlesource.com/95083
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Leon Scroggins <scroggo@google.com>
diff --git a/gn/gm.gni b/gn/gm.gni
index 418957f..38aaff3 100644
--- a/gn/gm.gni
+++ b/gn/gm.gni
@@ -219,6 +219,7 @@
   "$_gm/nonclosedpaths.cpp",
   "$_gm/occludedrrectblur.cpp",
   "$_gm/offsetimagefilter.cpp",
+  "$_gm/orientation.cpp",
   "$_gm/ovals.cpp",
   "$_gm/overdrawcolorfilter.cpp",
   "$_gm/OverStroke.cpp",