Copy PDBs to app bin folder

Feature request:
Enable copying PDBs to the app's bin folder. From looking at the existing behavior and code in scripts/buildsystems/msbuild/applocal.ps1, it appears that only the DLLs themselves are copied.

(Perhaps this would be an optional feature controlled by a new property, such as VcpkgCopyPdbs in MSBuild.)

This behavior is significant for pipelines that do certain types of security scanning, which rely on information in PDBs (and expect PDBs to be placed next to DLLs).