Add TODOs

v2/backend/arduino/TODO

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+* More cleanup: the only required is the nb of leds/strip, not H/W
+* Process as fast as possible (no frame sync required)
+* Get the OctoWS2811 out, try to go upstream
+* There will be 2 Serial ports used, the startChar will not be used anymore (Serial1 will *only* get LED data)
+* remove commented/debug code

v2/backend/forwarding/TODO

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+Forwarder
+=========
+
+* Control framerate in send function
+* Define a max framerate and announce it in the config (redis)
+* Only send the LED/strip value to the adruino code
+* Remove commented code
+
+Receiver
+========
+
+* Listen on an other port to give the config to the client (H/W, max framerate)
+* Allow the user to set a lower framerate than the max one anounced by the forwarder
+* Remove debug code

v2/backend/processing/PixelControl_TCP/TODO

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+* Get config (H/W and max framerate) from the config server
+* Set current framerate (lower than max), ad send it to the config server
+* Optimize the datastream generator