Restructure solution layout by module

src/Cli/StellaOps.Cli/Services/IAuthorityRevocationClient.cs

@@ -0,0 +1,10 @@
+using System.Threading;
+using System.Threading.Tasks;
+using StellaOps.Cli.Services.Models;
+
+namespace StellaOps.Cli.Services;
+
+internal interface IAuthorityRevocationClient
+{
+    Task<AuthorityRevocationExportResult> ExportAsync(bool verbose, CancellationToken cancellationToken);
+}