Add BuildSubmissionStartedEventArgs event

[JanKrivanek]

Context

We need to distinguish restore is happening for the BuildCheck feature (namely for https://github.com/dotnet/msbuild/issues/9747) This is not currently possible until receiving BuildEvaluationFinished. Team decided that it's more future wise to add the full event with all the relevant info, rather than reusing BuildEvaluationStarted event.

Blocked by: https://github.com/dotnet/msbuild/pull/10172

What should be done

• Create new BuildEventArg - named BuildSubmissionStarted
• Add the followind data (they will be sourced from common base of BuildRequestData and GraphBuildRequestData introduced in https://github.com/dotnet/msbuild/pull/10172):
  • EntryProjectFullPath(s)
  • TargetNames
  • Flags (note - the ClearCachesAfterBuild flag might be helpful in the future for BuildCheck dedup)
  • GlobalProps
  • SubmissionId (from the PendBuildRequest functions)
• Send the event through logging from a location all requests go through (probably https://github.com/dotnet/msbuild/pull/10172/files#diff-2b0716a511d8f4ee690ebd5c3a59dec1e3f9a5eab4ab2a80a1018820a658accbR1370)
• Ensure proper de/serialization in BuildEventsArgReader/Writer
• Increment binlog version, Create Binlog viewer PR (todo: give further instructions here)

Additional notes

This work would ideally unify with:

• [ ] BuildCheckTracingEventArgs de/serialization
• [ ] https://github.com/dotnet/msbuild/issues/10244 (once https://github.com/dotnet/msbuild/pull/10055 is merged)
• [x] https://github.com/dotnet/msbuild/issues/10146

[JanKrivanek]

The addition to the binlog might be bundled with BuildCheckTracingEventArgs de/serialization - in order to minimize formats bumps

[JanKrivanek]

Suggested location to publish the event: https://github.com/dotnet/msbuild/blob/06bb1c233fd4f2cd136ba3bbbfcb4b553a2eceb6/src/Build/BackEnd/BuildManager/BuildManager.cs#L1378