feat: Adds git client tests, restructures files.

Sources/cli-version/Commands/BuildCommand.swift

@@ -0,0 +1,19 @@
+import ArgumentParser
+import CliClient
+import Foundation
+import ShellClient
+
+struct BuildCommand: AsyncParsableCommand {
+  static let configuration: CommandConfiguration = .init(
+    commandName: "build",
+    abstract: "Used for the build with version plugin.",
+    discussion: "This should generally not be interacted with directly, outside of the build plugin.",
+    shouldDisplay: false
+  )
+
+  @OptionGroup var globals: GlobalOptions
+
+  func run() async throws {
+    try await globals.run(\.build)
+  }
+}