add text or label next to bounding box

[Feng Qiao]

Is your feature request related to a problem? Please describe.
I want to visualize the score/confidence of a bounding box in a 3D detection task.

Describe the solution you'd like
A clear and concise description of what you want to happen.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.