Adding FourPeople_1280x720_30.yuv.

Typical conference content in most popular format (1280x720 30fps).

Bug: none
Change-Id: I61ec1af44e65e5aec2f2f5e5ecb101b10b423c8b
Reviewed-on: https://webrtc-review.googlesource.com/51761
Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
Commit-Queue: Sergey Silkin <ssilkin@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21986}
diff --git a/resources/FourPeople_1280x720_30.yuv.sha1 b/resources/FourPeople_1280x720_30.yuv.sha1
new file mode 100644
index 0000000..dcfd197
--- /dev/null
+++ b/resources/FourPeople_1280x720_30.yuv.sha1
@@ -0,0 +1 @@
+3baa38557757bb770f7cbeaa390e3a8a1e0c254c
\ No newline at end of file