dotnet-svcutil: refine TFX resolution and the referenced WCF versions, and update test baselines.

[imcarolwang]

Split PR #5519 - Part 2

Description:

1. Correctly resolve the target framework moniker string passed from the WCF CS Tool when it is netstandard.
2. Add WCF references based on the user's project target frameworks, accounting for .NET Framework, .NET Core, and .NET Standard, including both single-target and multi-target scenarios.
3. Remove WCF references older than version 4.10; retain only the three common WCF packages for the 8.* version, update the test baselines accordingly.