Update TargetFramework to net9

Requirements to run

• .NET 9.0 (9.0.0)

Requirements to build

• Visual Studio 2022 (17.12) or .NET 9.0 SDK (SDK 9.0.100)

Changed

• Update TargetFramework to net9
• Use file scoped namespace declarations
• Update LangVersion to 13.0
• Remove CircleCI, AppVeyor, Azure Pipelines
• Add workflow files for GitHub Actions
• Update dependencies
• Update documentation

Update target framework .NET Core 3.1.

Requirements to run

• .NET Core 3.1 (3.1.300)

Requirements to build

• Visual Studio 2019 (16.5) or .NET Core 3.1 (3.1.300)

New

• Add -V (--version) option to show version.

Fixed

• Fix BomSweeper to handle UnauthorizedAccessException.

Changed

• Update target framework .NET Core 3.1.

Initial release.

Requirements to run

• .NET Core 2.2 (2.2.203)

Requirements to build

• Visual Studio 2019 (16.0) or .NET Core 2.2 (2.2.203)

New

• Find the files matching the specified patterns and starting with a UTF-8 BOM in the current directory and subdirectories.
• Remove a UTF-8 BOM from the files matching the specified patterns.