tool: Adding support for the uv system

[narendasan]

Description

Adds a uv lock file and some settings that allows users to use uv out of the box to trivially build the main branch with just uv + bazel.

The uv.lock file should be regularly updated, there is a precommit job we could add for this but I want to test the workflow first before requiring people to install uv

Type of change

Please delete options that are not relevant and/or add your own.

• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project (You can use the linters)
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas and hacks
• I have made corresponding changes to the documentation
• I have added tests to verify my fix or my feature
• New and existing unit tests pass locally with my changes
• I have added the relevant labels to my PR in so that relevant reviewers are notified

[lanluo-nvidia]

LGTM

[lanluo-nvidia]

seems like this issue is only related to uv.
when use pip it is not a iisue.

[narendasan]

when you use pip doesnt look at torchvision until you ask for the torchvision extra dep, I think thats the issue