update rerun version to 0.16.0 and lerobot version to 1.4

replace cv2 with opencv-python in requirenments.txt

handle logging of path+timestamp

fix issue with installing egl_probe

fix datasets import

Integrate with rerun dataset converter

Add gradio to requirements

Better instructions

More general support for any HuggingFace dataset, with streaming

Log any and all columns of the dataset

Add code to download dataset and visualize with Rerun