Allow specifying a property to ignore the use of build-time packages for versioning and analysis

[baronfel]

Fixes #1421 by adding a UseBuildTimeTools conditional. When set explicitly to false the PackageReferences are not included in the build.

Before:

> dotnet build -bl
MSBuild version 17.8.3+195e7f5a3 for .NET
  Determining projects to restore...
  All projects are up-to-date for restore.
  MinVer: Using { Commit: 7397169, Tag: '0.48.0', Version: 0.48.0, Height: 7 }.
  MinVer: Calculated version 0.48.1-preview.0.7.
  MinVer: Using { Commit: 7397169, Tag: '0.48.0', Version: 0.48.0, Height: 7 }.
  MinVer: Calculated version 0.48.1-preview.0.7.
  MinVer: Using { Commit: 7397169, Tag: '0.48.0', Version: 0.48.0, Height: 7 }.
  MinVer: Calculated version 0.48.1-preview.0.7.
  Spectre.Console -> E:\Code\spectre.console\src\Spectre.Console\bin\Debug\net6.0\Spectre.Console.dll
  Spectre.Console -> E:\Code\spectre.console\src\Spectre.Console\bin\Debug\net7.0\Spectre.Console.dll
  Spectre.Console -> E:\Code\spectre.console\src\Spectre.Console\bin\Debug\net8.0\Spectre.Console.dll
  MinVer: Using { Commit: 7397169, Tag: '0.48.0', Version: 0.48.0, Height: 7 }.
  MinVer: Calculated version 0.48.1-preview.0.7.
  Spectre.Console -> E:\Code\spectre.console\src\Spectre.Console\bin\Debug\netstandard2.0\Spectre.Console.dll

Build succeeded.
    0 Warning(s)
    0 Error(s)

Time Elapsed 00:00:04.16

After:

> dotnet build -bl -p UseBuildTimeTools=false
MSBuild version 17.8.3+195e7f5a3 for .NET
  Determining projects to restore...
  Restored E:\Code\spectre.console\src\Spectre.Console\Spectre.Console.csproj (in 181 ms).
  Spectre.Console -> E:\Code\spectre.console\src\Spectre.Console\bin\Debug\netstandard2.0\Spectre.Console.dll
  Spectre.Console -> E:\Code\spectre.console\src\Spectre.Console\bin\Debug\net6.0\Spectre.Console.dll
  Spectre.Console -> E:\Code\spectre.console\src\Spectre.Console\bin\Debug\net7.0\Spectre.Console.dll
  Spectre.Console -> E:\Code\spectre.console\src\Spectre.Console\bin\Debug\net8.0\Spectre.Console.dll

Build succeeded.
    0 Warning(s)
    0 Error(s)

Time Elapsed 00:00:02.11

• I have read the Contribution Guidelines
• I have commented on the issue above and discussed the intended changes
• A maintainer has signed off on the changes and the issue was assigned to me
• All newly added code is adequately covered by tests
• All existing tests are still running without errors
• The documentation was modified to reflect the changes OR no documentation changes are required.

Changes

I introduced an MSBuild property that can be set to skip the use of build-time analyzers and build-time version inference.

[patriksvensson]

LGTM 👍

[patriksvensson]

Merged! Thank you for your contribution. Much appreciated! 👍