Nightly AV1/VP9 speed tests

- An independent script for code base Git synchronization.
- A configuration/build script for VP9.
- A configuration/build script for AV1.
- Nightly test includes AV1/VP9 profile=0/2.

Change-Id: Ic16357cef9473c28206203c75da6cefe65d220a7

scripts/video_sequence.sh

@@ -7,6 +7,13 @@
 # bitrate=500
 # fps="30/1"
 
+# video=~/Dev/samples/videos/speed-set/touchdown_pass_480p.y4m
+# wi=854
+# he=480
+# frames=30
+# bitrate=2400
+# fps="30000/1001"
+
 video=~/Dev/samples/videos/speed-set/BasketballDrive_1920x1080_50.y4m
 wi=1920
 he=1080