test: Move all the reference images to their own directory

With over two thousand references images now, it is starting to make the
test directory look cluttered!

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 0 insertions, 0 deletions

diff --git a/test/reference/hatchings.ref.png b/test/reference/hatchings.ref.png
new file mode 100644
index 000000000..3b34e5c19
--- /dev/null
+++ b/test/reference/hatchings.ref.png