Cleanup deps. Add params. Setup mediamts and image2rtsp.

params/am_i_up.yaml

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+/**:
+   ros__parameters:
+      ui_pkg: "am_i_up_ui"
+      listen_port: "8000"

params/image2rtsp.yaml

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+/**:
+   ros__parameters:
+      compressed: True
+      topic: "image/compressed"
+      mountpoint: "/image"
+      port: "8559"
+      local_only: True

params/mediamtx.yaml

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+paths:
+  image:
+    source: rtsp://127.0.0.1:8559/image