Only log CameraImage's at 1 Hz

Add an image_decimator application to resend CameraImage messages at 1
Hz.

Change-Id: I12ef64ba7e196ca3d560a7fb3d42b51676176b9f
Signed-off-by: James Kuszmaul <jabukuszmaul@gmail.com>
diff --git a/y2022/vision/BUILD b/y2022/vision/BUILD
index 4ca8561..bede03a 100644
--- a/y2022/vision/BUILD
+++ b/y2022/vision/BUILD
@@ -252,3 +252,15 @@
         "//y2022/control_loops/superstructure:superstructure_status_fbs",
     ],
 )
+
+cc_binary(
+    name = "image_decimator",
+    srcs = ["image_decimator.cc"],
+    visibility = ["//y2022:__subpackages__"],
+    deps = [
+        "//aos:flatbuffers",
+        "//aos:init",
+        "//aos/events:shm_event_loop",
+        "//frc971/vision:vision_fbs",
+    ],
+)