Track frameworks using the NAT registry

[dagardner-nv]

Is this a new feature, an improvement, or a change to existing functionality?

New Feature

How would you describe the priority of this feature request

High

Please provide a clear description of problem this feature solves

Currently adding a new framework requires modifying src/nat/builder/framework_enum.py which creates two problems:

1. Frameworks added by plugins are codified within the core nvidia-nat package
2. Third-party developers are not able to add a new framework in an external repo without also submitting a PR to modify LLMFrameworkEnum

Describe your ideal solution

Track frameworks using the component registry allowing developers to register a new framework with something like:

class CrewAIConfig(FrameWorkBaseConfig, name="crewai"):
    ...

@register_framework(config_type=CrewAIConfig)
async def crew_ai():
    import crewai

Additional context

No response

Code of Conduct

• I agree to follow this project's Code of Conduct
• I have searched the open feature requests and have found no duplicates for this feature request