feat: Adds git client tests, restructures files.

Sources/cli-version/Commands/GenerateCommand.swift

@@ -0,0 +1,19 @@
+import ArgumentParser
+import CliClient
+import Dependencies
+import Foundation
+import ShellClient
+
+struct GenerateCommand: AsyncParsableCommand {
+  static let configuration: CommandConfiguration = .init(
+    commandName: "generate",
+    abstract: "Generates a version file in a command line tool that can be set via the git tag or git sha.",
+    discussion: "This command can be interacted with directly, outside of the plugin usage context."
+  )
+
+  @OptionGroup var globals: GlobalOptions
+
+  func run() async throws {
+    try await globals.run(\.generate)
+  }
+}