Add sample pre-commit hook (#2470)

Using pre-commit hooks helps us to decrease CI load and improve developers' experience.

ci/setup.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+# Copyright (C) 2023 Amazon.com Inc. or its affiliates. All rights reserved.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+# This script executes some commands to make your onboarding with WAMR easier.
+# For example, setting pre-commit hook that will make your code complaint with the
+# code style requirements checked in WAMR CI
+
+echo "Copy the pre-commit hook to your hooks folder"
+cp pre_commit_hook_sample ../.git/hooks/pre-commit
+
+# Feel free to propose your commands to this script to make developing WAMR easier
+
+echo "Setup is done"