feat: version command (#6)

Version v0.1

Reviewed-on: #6
Co-authored-by: bdoerfchen <git@bissendorf.co>
Co-committed-by: bdoerfchen <git@bissendorf.co>

cmd/version.go

@@ -0,0 +1,16 @@
+package cmd
+
+import (
+	"fmt"
+
+	"git.bissendorf.co/bissendorf/unifood/m/v2/util"
+	"github.com/spf13/cobra"
+)
+
+var versionCmd = cobra.Command{
+	Use:     "version",
+	Aliases: []string{"v"},
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Println(util.AppVersion)
+	},
+}