feat: v2 (#599)

Read https://github.com/filebrowser/filebrowser/pull/575.

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cmd/version.go

@@ -0,0 +1,20 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/filebrowser/filebrowser/v2/version"
+	"github.com/spf13/cobra"
+)
+
+func init() {
+	rootCmd.AddCommand(versionCmd)
+}
+
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: "Print the version number",
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Println("File Browser Version " + version.Version)
+	},
+}