Merge pull request dotnet#10284 from dotnet/update_sdk

Updating SDK 2.1.500-preview-63506-03

Merge pull request dotnet#10159 from dotnet/update_implicit_versions

Updating 1.0 and 1.1 implicit self-contained versions

.NET Core SDK 1.1.11 release.

[release/2.1.5xx] Update dependencies for 2.1.500-preview

[release/2.1.4xx] Update dependencies for 2.1.403

Release 2.1.500-preview-009335.

Merge pull request dotnet#10027 from mmitche/bump-commit-count

Bump commit count for 2.1.4xx

2.1.402 dependencies.

Tag for v2.1.402

Merge pull request dotnet#9927 from livarcocc/fix_external_sources

Fixing the external restore sources file.