Implement Magic Wand Tensorflow Example

[mocleiri]

Implement the Magic Wand example: https://github.com/tensorflow/tensorflow/blob/master/tensorflow/lite/micro/examples/magic_wand/README.md

We may need to retrain: https://github.com/tensorflow/tensorflow/blob/master/tensorflow/lite/micro/examples/magic_wand/train/README.md

[mocleiri]

Updated links:
https://github.com/tensorflow/tflite-micro/blob/main/tensorflow/lite/micro/examples/magic_wand/README.md

https://github.com/tensorflow/tflite-micro/tree/main/tensorflow/lite/micro/examples/magic_wand/train

[mocleiri]

I bought a 6DOF board instead of a 9DOF board so it may not work for me:
https://learn.sparkfun.com/tutorials/lsm6ds3-breakout-hookup-guide/all