Adding nightly/weekly github actions for MLPerf inference runs

[arjunsuresh]

@anandhu-eng We have the github action working for nightly/weekly tests of MLPerf inference implementations.

https://gateoverflow.github.io/mlperf_inference_test_submissions_v5.0/

This can help solve part of this issue. We can close this issue once we have all the models and implementations coming here.

• R50 Reference
• Retinanet Reference
• Bert Reference
• 3d-unet Reference
• GPTJ Reference
• DLRMv2 Reference
• Stable Diffusion Reference
• LLaMa2 Reference
• Mixtral

[arjunsuresh]

All reference models are now added in the nightly runs.