Add package initialization subcommand and package

cmd/main.go

@@ -14,17 +14,17 @@ const (
 )
 
 func main() {
-	rootCmd := &cobra.Command{
+	root_cmd := &cobra.Command{
 		Use:           "gas",
 		SilenceErrors: true,
 		SilenceUsage:  true,
 	}
-	rootCmd.AddCommand(sqlite_lint)
-	if err := rootCmd.Execute(); err != nil {
+	root_cmd.AddCommand(sqlite_lint)
+	root_cmd.AddCommand(cmd_init)
+	if err := root_cmd.Execute(); err != nil {
 		fmt.Println(RED + err.Error() + RESET)
 		os.Exit(1)
 	}
 }
 
-// Subcommand "init"
 // Subcommand "generate_models"