add latency predictor build readme and update test

[kaushikmitr]

This pull request adds a comprehensive build and deployment guide for the Latency Predictor v1 component. The new README.md provides step-by-step instructions for building, deploying, and testing the dual server architecture using Google Cloud Platform and Kubernetes. The documentation covers prerequisites, configuration, usage, troubleshooting, and workflow for both local development and cloud deployment.

Documentation and workflow improvements:

• Added a detailed README.md with instructions for building, pushing, deploying, and testing the training and prediction server containers using the build-deploy.sh script.
• Explained prerequisite tools and files required, including Docker, Google Cloud SDK, and Kubernetes configuration.
• Provided step-by-step setup instructions for GCP authentication, kubectl configuration, and script customization.

Deployment and testing guidance:

• Documented the deployment phase, including applying Kubernetes manifests and exposing services via LoadBalancer, with commands for checking status and troubleshooting.
• Included sample API requests and endpoints for health checks and predictions, plus instructions for viewing logs and service status.

[k8s-ci-robot]

Hi @kaushikmitr. Thanks for your PR.

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[kaushikmitr]

@kfswain @ahg-g PTAL

[kfswain]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: kaushikmitr, kfswain

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[kfswain]

/ok-to-test