jershi425

Add Multi-hot feature into the movie-lens example

12

Added 'genres' as a multi-hot feature into the sample.

The current [Movie-Lens example](https://github.com/NVIDIA-Merlin/HugeCTR/blob/master/notebooks/movie-lens-example.ipynb) uses KNN to make a inference demo but produces suspicious results which have a lot of queries returning the same recommendation. According to @vinhngx, there is...