This changes adds a target for .NET Framework 4.6.1 so that we can get
rid of the System.IO.FileSystem.AccessControl reference which causes
problems for certain .NET Framework consumption patterns

Fixes #547

Bumps [Microsoft.NET.Test.Sdk](https://github.com/microsoft/vstest) from 16.4.0 to 16.5.0.
- [Release notes](https://github.com/microsoft/vstest/releases)
- [Commits](https://github.com/microsoft/vstest/compare/v16.4.0...v16.5.0

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [NUnit3TestAdapter](https://github.com/nunit/nunit3-vs-adapter) from 3.16.0 to 3.16.1.
- [Release notes](https://github.com/nunit/nunit3-vs-adapter/releases)
- [Commits](https://github.com/nunit/nunit3-vs-adapter/compare/V3.16...V3.16.1

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Seems like AppVeyor has problems otherwise

This change reduces the target frameworks this library supports to .NET Standard 2.0 and 2.1.

The goal of this change is to reduce maintenance efforts and get rid of legacy workarounds.

As this is a breaking change for consumers (e.g. no more support from .NET Framework < 4.7) the major version is bumped to 8.

If you need support for older frameworks feel free to stay at v7.1.10 or fork this repo from 86066e08.

Bump Nerdbank.GitVersioning from 3.0.48 to 3.0.50

Bumps [Nerdbank.GitVersioning](https://github.com/AArnott/Nerdbank.GitVersioning) from 3.0.48 to 3.0.50.
- [Release notes](https://github.com/AArnott/Nerdbank.GitVersioning/releases)
- [Commits](https://github.com/AArnott/Nerdbank.GitVersioning/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

updated IDirectory interface with tests and conditional compilation (WIP)

Bumps [Nerdbank.GitVersioning](https://github.com/AArnott/Nerdbank.GitVersioning) from 3.0.28 to 3.0.48.
- [Release notes](https://github.com/AArnott/Nerdbank.GitVersioning/releases)
- [Commits](https://github.com/AArnott/Nerdbank.GitVersioning/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bump NUnit3TestAdapter from 3.15.1 to 3.16.0

Bumps [NUnit3TestAdapter](https://github.com/nunit/nunit3-vs-adapter) from 3.15.1 to 3.16.0.
- [Release notes](https://github.com/nunit/nunit3-vs-adapter/releases)
- [Commits](https://github.com/nunit/nunit3-vs-adapter/compare/V3.15.1...V3.16

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

According to the documentation, File.Replace is a part of .NET Standard
2.0 and supported by Core 2.0 and later.

Related to #334 but does not attempt to address all methods that might
be supported by .NET Standard/Core 2.0 and later.

Bumps [System.IO.FileSystem.AccessControl](https://github.com/dotnet/corefx) from 4.6.0 to 4.7.0.
- [Release notes](https://github.com/dotnet/corefx/releases)
- [Commits](https://github.com/dotnet/corefx/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [System.Security.AccessControl](https://github.com/dotnet/corefx) from 4.6.0 to 4.7.0.
- [Release notes](https://github.com/dotnet/corefx/releases)
- [Commits](https://github.com/dotnet/corefx/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bump Nerdbank.GitVersioning from 3.0.26 to 3.0.28

Bumps [Nerdbank.GitVersioning](https://github.com/AArnott/Nerdbank.GitVersioning) from 3.0.26 to 3.0.28.
- [Release notes](https://github.com/AArnott/Nerdbank.GitVersioning/releases)
- [Commits](https://github.com/AArnott/Nerdbank.GitVersioning/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bump Microsoft.NET.Test.Sdk from 16.2.0 to 16.4.0

Bumps [Microsoft.NET.Test.Sdk](https://github.com/microsoft/vstest) from 16.2.0 to 16.4.0.
- [Release notes](https://github.com/microsoft/vstest/releases)
- [Commits](https://github.com/microsoft/vstest/compare/v16.2.0...v16.4.0

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bump Moq from 4.13.0 to 4.13.1

Bumps [Moq](https://github.com/moq/moq4) from 4.13.0 to 4.13.1.
- [Release notes](https://github.com/moq/moq4/releases)
- [Changelog](https://github.com/moq/moq4/blob/master/CHANGELOG.md)
- [Commits](https://github.com/moq/moq4/compare/v4.13.0...v4.13.1

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

* fix(439): Add special case to Directory.GetFilesInternal to return only files without extensions when search pattern is "*."

* Added files with no extension to the existing tests in MockDirectoryTests.

* fix(439): Pattern *. works as System.Directory.

* Fix for case sensitive paths.

Deployment steps were not executed since the changeover to the VS 2019 build image. 

https://github.com/marketplace/issue-label-bot

Fixes #499

Bump Nerdbank.GitVersioning from 3.0.25 to 3.0.26

Bumps [Nerdbank.GitVersioning](https://github.com/AArnott/Nerdbank.GitVersioning) from 3.0.25 to 3.0.26.
- [Release notes](https://github.com/AArnott/Nerdbank.GitVersioning/releases)
- [Commits](https://github.com/AArnott/Nerdbank.GitVersioning/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Merge pull request #508 from System-IO-Abstractions/dependabot/nuget/System.IO.FileSystem.AccessControl-4.6.0

Bump System.IO.FileSystem.AccessControl from 4.5.0 to 4.6.0

Bumps [System.IO.FileSystem.AccessControl](https://github.com/dotnet/corefx) from 4.5.0 to 4.6.0.
- [Release notes](https://github.com/dotnet/corefx/releases)
- [Commits](https://github.com/dotnet/corefx/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Merge pull request #507 from System-IO-Abstractions/dependabot/nuget/System.Security.AccessControl-4.6.0

Bump System.Security.AccessControl from 4.5.0 to 4.6.0

Bumps [System.Security.AccessControl](https://github.com/dotnet/corefx) from 4.5.0 to 4.6.0.
- [Release notes](https://github.com/dotnet/corefx/releases)
- [Commits](https://github.com/dotnet/corefx/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>