[gegl] tests: Add laplace and sobel reference images

[Martin Nordholts <martinn src gnome org>]

commit 18ba3afe78d00001f1f1ac7bc58c8e9e9c50cd95
Author: Martin Nordholts <martinn src gnome org>
Date:   Thu Apr 21 19:53:45 2011 +0200

    tests: Add laplace and sobel reference images
    
    For some reason though, the laplace op is not stable so the test
    fails, but now we at least have reference images.

 tests/compositions/reference/edge-laplace.png |  Bin 0 -> 460108 bytes
 tests/compositions/reference/edge-sobel.png   |  Bin 0 -> 764853 bytes
 2 files changed, 0 insertions(+), 0 deletions(-)
---
diff --git a/tests/compositions/reference/edge-laplace.png b/tests/compositions/reference/edge-laplace.png
new file mode 100644
index 0000000..cb8fd88
Binary files /dev/null and b/tests/compositions/reference/edge-laplace.png differ
diff --git a/tests/compositions/reference/edge-sobel.png b/tests/compositions/reference/edge-sobel.png
new file mode 100644
index 0000000..d76156b
Binary files /dev/null and b/tests/compositions/reference/edge-sobel.png differ