Add a GM to test out odd matrix draws

Bug: skia:7075
Change-Id: I90c15bf019161abc5dab78e0af20ef15ff1395d9
Reviewed-on: https://skia-review.googlesource.com/64761
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
3 files changed