Globbing should exclude SCC hint files

[jviau]

In traditional .csproj, "*.vspscc" and "*.vssscc" are not included in the csproj when the project is under TFS SCC. These files are picked up by the <None Include="**" /> glob in SDK-style projects and shown in the solution explorer. The sdk should exclude these files from the glob.

[github-actions]

Due to lack of recent activity, this issue has been labeled as 'stale'. It will be closed if no further activity occurs within 30 more days. Any new comment will remove the label.

[baronfel]

Adding more globs incurs a performance hit on all users, and I'm not inclined to take that hot for these source control systems. If some users need that, I'd suggest that logic (additions to the default excludes I mean) be put into a nuget package and included directly in projects that need it.