Create image replay viewer for looking at logged images

Change-Id: I1d41aa61bfc9eded83f83d64dc9599e25931ed17
diff --git a/y2020/vision/BUILD b/y2020/vision/BUILD
index b95bca3..3baa61b 100644
--- a/y2020/vision/BUILD
+++ b/y2020/vision/BUILD
@@ -80,3 +80,25 @@
         "//third_party:opencv",
     ],
 )
+
+cc_binary(
+    name = "viewer_replay",
+    srcs = [
+        "viewer_replay.cc",
+    ],
+    data = [
+        "//y2020:config.json",
+    ],
+    restricted_to = [
+        "//tools:k8",
+        "//tools:armhf-debian",
+    ],
+    visibility = ["//y2020:__subpackages__"],
+    deps = [
+        ":vision_fbs",
+        "//aos:init",
+        "//aos/events:simulated_event_loop",
+        "//aos/events/logging:logger",
+        "//third_party:opencv",
+    ],
+)