osc.viz

Visualization utils.

`osc.viz.attentions`	Attention visualization utils: single attn maps and rollouts.
`osc.viz.backbone`	Clustering backbone features.
`osc.viz.embeds`	Visualization of positional embeddings.
`osc.viz.history`	Visualization of training history (old).
`osc.viz.loss_global`	Visualization of global losses.
`osc.viz.loss_objects`	Visualization of object losses.
`osc.viz.rollout`
`osc.viz.segmentation`
`osc.viz.utils`	Visualization utils.