Add evaluation specific metrcis and graphs to dashboard

[OvesN]

Objective

Add the new evaluation-specific metrics and graphs introduced in the referenced PerfStar PRs to the performance dashboard.

References

PerfStar PR:

• https://devdiv.visualstudio.com/DevDiv/_git/dotnet-perfstar/pullrequest/765029
• https://devdiv.visualstudio.com/DevDiv/_git/dotnet-perfstar/pullrequest/758820

Requirements

The dashboard should provide a clear, user-friendly view of evaluation performance trends and be suitable for presentation during Evaluation Sync meetings. Users should be able to understand performance changes and regressions at a glance.

The dashboard should include:

• Evaluation time broken down by individual evaluation phases.
• Total evaluation time.
• Total build time
• Time before MSBuild submission (dotnet.cli.process_start_to_msbuild_submission.duration).
• Historical trends showing improvements and regressions over time.
• Percentage change between builds for all key evaluation metrics.

Build Comparison Experience

Provide functionality to select and compare two specific builds. For each selected build, display:

• MSBuild commit SHA and a link to the commit.
• SDK commit SHA and a link to the commit used in the build.
• Key metric values for both builds.
• Percentage improvement or regression between the selected builds.

The comparison view should make it easy to answer questions such as:

• What changed between these two builds?
• Which evaluation metrics improved or regressed?
• What was the percentage improvement for each metric?