McMaster.Extensions.CommandLineUtils 2.2.0-rc

New features: - Added more validation attributes. - Add the `[FileExists]` attribute - Add the `[FileOrDirectoryExists]` attribute - Add the `[DirectoryExists]` attribute - Add the `[LegalFilePath]` attribute - Add the `[AllowedValues]` attribute - Added a new, fluent API for validation. - Added `Option().Accepts()` and `Argument().Accepts()` - Add `.ExistingFile()` - Add `.ExistingFileOrDirectory()` - Add `.ExistingDirectory()` - Add `.EmailAddress()` - Add `.LegalFilePath()` - Add `.MinLength(length)` - Add `.MaxLength(length)` - Add `.RegularExpression(pattern)` - Add `.Values(string[] allowedValues)` - Add `.Range(min, max)` - Add `CommandOptionType.SingleOrNoValue`. - Options of this type can be a switch, or have a value but only in the form `--param:value` or `--param=value`. - Support mapping `ValueTuple<bool,T>` to `CommandOptionType.SingleOrNoValue` - Generic commands, options, and arguments - Added `CommandLineApplication<TModel>`. This allows associating an application with a specific .NET type - Add support for `Option<T>` and `Argument<T>` - Convention API - Adds support for writing your own conventions to convert command line arguments into a .NET type - Add API to use a dozen of built-in conventions Other enhancements: - Support parsing enums - @rmcc13 - `HelpOption` can be set to be inherited by all subcommands - @atruskie - Support for parsing double and floats - @sebastienros - Support for case-insensitive options - @atruskie: Add support for user-defined value parsers using `IValueParser` and `CommandLineApplication.ValueParsers`. - Add support for constructor injection and dependency injection by providing a custom service provider - Parse these values to boolean: T, t, F, f, 0, 1 - Add `VersionOptionFromMember` to use a property or method as the source of version information See more details here: https://github.com/natemcmaster/CommandLineUtils/blob/master/CHANGELOG.md#v220