Recommend extensions for developing in Visual Studio Code.

- Suppress obsolete warnings on Swashbuckle types.
- Fix some `#if define`s to use "or greater".
- Fix xunit analyser warnings.

Run `npm audit fix` to resolve warnings about vulnerable dependencies.

Remove build.txt which presumably was committed by mistake.

- Use .NET 8 SDK as .NET 7 goes out of support in May 2024.
- Support C# 12 in all projects.
- Bump Newtonsoft.Json and xunit to latest versions.
- Use NuGet central package version management.
- Enable package source mappings.
- Configure recommended properties for deterministic builds.
- Configure recommended properties for NuGet package publishing.
- Use artifacts output.
- Add code coverage.
- Prepare for GitHub Actions CI.
- Temporarily suppress warnings about out-of-support TFMs and NuGet package dependency vulnerabilities.
- Simplify target frameworks when only one is present.
- Update some terminology/typos.

Remove `licenseUrl` as it is mutually exclusive with `licenseExpression`.

- Add workflow to build, pack, test and publish the project.
- Add workflow to run CodeQL.
- Add workflow to lint GitHub Actions workflows.
- Add workflow to generate OSSF scorecard.
- Add workflow to update the .NET SDK.
- Add workflow to prune stale GitHub issues and PRs.
- Add simple build script to share between CI and local development.
- Remove AppVeyor CI.

Enable dependabot for GitHub Actions and NuGet packages.

Fix coverage reports being collected from the wrong location.

Set the executable bit for Linux and macOS.

Fix `DotNetSwaggerPath` being incorrect with artifacts output in use.

Fix incorrect workflow permissions when using `GITHUB_TOKEN`.

Change to `pr.<PR>.<RUN>`.

- Ensure values are quoted.
- Use absolute paths.

Remove checked-in XML file and use the file from the build output.

Try to fix the path to dotnet-swagger in CI.

Add an explicit project reference on Swashbuckle.AspNetCore.Cli to ensure that this project depends on it.

Need to match the file system casing for Linux and macOS.

Include projects ending in `Tests` too.

Just include Swashbuckle assemblies in coverage, so exclude all the test websites etc.

- Attempt to fix the workflow by removing steps to setup the .NET SDK and use the NuGet cache.
- Fix name to match file.

Add the step to install the .NET SDK back.

Match the syntax with another repo where the workflow is definitely doing the right thing.

Try running on Windows.

Switch back to Ubuntu and manually build the solution.

Rename step to reflect what it's doing.

`String.Copy()` isn't needed.

Bump patch version so the version is greater than the current stable release.