feat: split camera worker and tick worker

cameraworker.py

@@ -0,0 +1,28 @@
+import sched
+
+from redis import Redis
+
+from control.camera import Camera
+
+INTERVAL_TICK = 0.0125  # 20/s
+INTERVAL_IMAGE = 0.05  # 20/s
+
+
+scheduler = sched.scheduler()
+camera = Camera()
+
+
+def camera_image():
+    scheduler.enter(INTERVAL_IMAGE, 1, camera_image)
+    image = camera.get_image()
+    redisdb.publish('image', image)
+
+
+scheduler.enter(INTERVAL_IMAGE, 1, camera_image)
+
+if __name__ == '__main__':
+    redisdb = Redis()
+    try:
+        scheduler.run()
+    except KeyboardInterrupt:
+        raise