Overhaul LibationCli

Add version verb with option to check for upgrade
Add Search verb to search the library
Add export file type inference
Add more set-status options
Add console progress bar and ETA
Add processable option to liberate specific book IDs
Scan accounts by nickname or account ID
Improve startup performance for halp and on parsing error
More useful error messages

Source/LibationCli/HelpVerb.cs

@@ -0,0 +1,52 @@
+using AppScaffolding;
+using CommandLine;
+using CommandLine.Text;
+
+namespace LibationCli;
+
+[Verb("help", HelpText = "Display more information on a specific command.")]
+internal class HelpVerb
+{
+	/// <summary>
+	/// Name of the verb to get help about
+	/// </summary>
+	[Value(0, Default = "")]
+	public string HelpType { get; set; }
+
+	/// <summary>
+	/// Create a base <see cref="HelpText"/> for <see cref="LibationCli"/>
+	/// </summary>
+	public static HelpText CreateHelpText()
+	{
+		var auto = new HelpText
+		{
+			AutoVersion = false,
+			AutoHelp = false,
+			Heading = $"LibationCli v{LibationScaffolding.BuildVersion.ToString(3)}",
+			AdditionalNewLineAfterOption = true,
+			MaximumDisplayWidth = 80
+		};
+		return auto;
+	}
+
+	/// <summary>
+	/// Get the <see cref="HelpType"/>'s <see cref="HelpText"/>
+	/// </summary>
+	public HelpText GetHelpText()
+	{
+		var helpText = CreateHelpText();
+		var result = new Parser().ParseArguments(new string[] { HelpType }, Program.VerbTypes);
+		if (result.TypeInfo.Current == typeof(NullInstance))
+		{
+			//HelpType is not a defined verb so get LibationCli usage
+			helpText.AddVerbs(Program.VerbTypes);
+		}
+		else
+		{
+			helpText.AddDashesToOption = true;
+			helpText.AutoHelp = true;
+			helpText.AddOptions(result);
+		}
+		return helpText;
+	}
+}