feat: Begin working on configuration client.

Sources/cli-version/BuildCommand.swift

@@ -7,17 +7,41 @@ extension CliVersionCommand {
   struct Build: AsyncParsableCommand {
     static let configuration: CommandConfiguration = .init(
       abstract: "Used for the build with version plugin.",
-      discussion: "This should generally not be interacted with directly, outside of the build plugin."
+      discussion: "This should generally not be interacted with directly, outside of the build plugin.",
+      subcommands: [BranchStyle.self, SemVarStyle.self],
+      defaultSubcommand: SemVarStyle.self
+    )
+  }
+}
+
+extension CliVersionCommand.Build {
+  struct BranchStyle: AsyncParsableCommand {
+
+    static let configuration: CommandConfiguration = .init(
+      commandName: "branch",
+      abstract: "Build using branch and commit sha as the version.",
+      discussion: "This should generally not be interacted with directly, outside of the plugin usage context."
     )
 
-    @OptionGroup var globals: GlobalOptions
+    @OptionGroup var globals: GlobalBranchOptions
 
     func run() async throws {
-      try await globals.run {
-        @Dependency(\.cliClient) var cliClient
-        let output = try await cliClient.build(globals.shared)
-        print(output)
-      }
+      try await globals.shared().run(\.build)
+    }
+  }
+
+  struct SemVarStyle: AsyncParsableCommand {
+
+    static let configuration: CommandConfiguration = .init(
+      commandName: "semvar",
+      abstract: "Generates a version file with SemVar style.",
+      discussion: "This should generally not be interacted with directly, outside of the plugin usage context."
+    )
+
+    @OptionGroup var globals: GlobalSemVarOptions
+
+    func run() async throws {
+      try await globals.shared().run(\.build)
     }
   }
 }